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FAQs about Seahorse &
Pipefish Disease, Pests, Predators 2 Related Articles: Seahorses & their
Relatives, Brooklynellosis, Fresh to
Brackish Water Pipefishes, Seahorse
Care Guide,
Related FAQs: Seahorse
Disease 1, Seahorses & their Relatives 1,
Seahorses & their
Relatives 2, Seahorse Identification,
Seahorse Behavior,
Seahorse Compatibility,
Seahorse Selection,
Seahorse
Systems, Seahorse Feeding,
Seahorse
Reproduction,
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Seahorse trouble 4/4/08
Dear WWM,
<Albert>
I set up a 56 gallon column tank for seahorses. I cycled it and filled it with
live rock and fake gorgonians. I have ozone and UV set up on this tank. I have a
Remora C protein skimmer and I have a box attached to the output as to prevent
bubbles from being introduced to the tank. I stocked the tank with some
blennies, cardinals, and gobies first. They are all fine. Then I purchased 4
black Kuda seahorses that were tank raised from my local LFS.
<Really? Progressive>
They were fine for one week eating frozen mysis. After that they got ill and
eventually they had their tails turn white then the body. They all died. I tried
to research on the web and thought it could be Costia or Vibrio or both.
<Yikes!>
So I waited a month thinking the UV and ozone would do the trick. I then
purchased some erectus seahorses from an online vendor.
<Mmm... your system itself may be infested...>
Again they were captive raised and again they contracted the same disease. I am
worried that the only way I can have seahorses is to tear down the tank and
bleach everything and start it up new.
<This, decidedly extreme course, is often best>
But I am not up to that. Is there any way to kill what is in my tank without
destroying all of the beneficial bacteria.
<Mmm, not w/o knowing what the actual causative organism/s are>
I thought some products like Aqua Pro-Cure and/or Revive might work. They are
made by FishVet and contain
Water 88 - 91% CAS #: 7732-18-5
Formaldehyde 4 - 6% CAS #: 50-00-0
<... a biocide. See WWM re>
Methyl Alcohol <1 - 2% CAS #: 67-56-1
Acriflavine Hydrochloride <2% CAS #: 8048-52-0
9-Aminoacridine <2% CAS #: 52417-22-8.
It should kill Protozoans and gram negative bacteria like a Vibrio strain. Also
is there anything I should look for in the water?
<Mmmm>
I have a high powered microscope. My erectus seahorses are dead and dried.
<Mmm, need to be "fresh dead" to sample...>
But is there a way I could get some type of sample to look at under the scope to
see what I am fighting.
<I strongly encourage you to invest in a copy of Ed Noga: Fish Disease,
Identification and Treatment>
I would really like to get some seahorses but I am afraid of what is in my tank.
Any input would be great.
<Too much to relate here>
As for my tank, 0 ammonia, 0 nitrite, 5 nitrate, 0 phosphate, 76 degrees, 96
watts of compact fluorescent lighting, and ORP of 350mV. I perform water changes
regularly with tap and instant ocean salt mix.
Thank you very much,
Al
<Bob Fenner>
Albert Jackson on Seahorses
again 4/4/08
I forgot to tell you I did quarantine them for 2 weeks before adding to the
system. Thanks
<Helpful, but... do take a long read on OceanRider.com's site re PeteG's disease
archives... BobF>
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Female seahorse 911 3/23/08
My female seahorse has a white object coming out where her tube for egg
transfer or her where she discards waste would be. and it has been that way for
thee days and I don't think she is eating is this normal or is there something I
can do?
<Yes... log in to OceanRider.com and peruse PeteG's logs re Seahorse disease.
Bob Fenner> |
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QUESTION CONCERNING
FEMALE SEAHORSE 3/26/08
Pete,
Bob Fenner suggested I email you concerning one of my female seahorses.
She has a white, reddish object where her waste is suppose to come out
and it has been there for three days. She has not eaten anything during
this time. Do you know what this is and is there something I can do for
her?
I would appreciate any information that you think might help.
Thank you,
Mark Goodwin
<Dear Mark:
I'm very sorry to hear about the problem that your female seahorse is
developed. It is difficult to determine exactly what is troubling your
female but I would be happy to share my thoughts on the matter with you.
As I understand the situation, your female has a white, reddish object
protruding from her vent, and has been in this condition for the past
few days. The seahorse’s vent is the cleft formed by the combined
openings of the anus and urogenital pore. It is the simple recessed
passage located just above (cranial to) the anal fin in females.. Three
things are normally expelled through the vent: fecal pellets, urine, and
gametes (ova or eggs, in the case of females, and spermatozoa, in the
case of males).
My best bet is that your female has become egg bound, Mark. I suspect
the white material protruding from her vent is prolapsed tissue, while
the reddish mass may be some of the congealed red-orange ova beginning
to protrude. More information regarding egg binding and a possible
treatment for the condition are discussed in the following excerpt from
my new book (Complete Guide to the Greater Seahorses in the Aquarium,
unpublished):
Egg Binding: a Health Risk for Breeding Females.
<quote> Egg binding occurs when a female has ripened (hydrated) a clutch
of eggs and is unable to deposit them with a mate or release them for
some reason. As more eggs develop, the egg bound female becomes
increasing bloated and great pressure begins to build up internally. The
abdomen will be very swollen, especially around the vent, and often
prolapsed tissue or other material will begin to protrude from the vent
as the pressure builds. The affected female will show rapid respiration
and may go off her feed. If the pressure cannot be relieved, death
results.
Tracy Warland describes a typical case in a female Potbelly (Hippocampus
abdominalis) as follows: "Went into the shed one morning to find an
adult mare, probably fully mature, in distress. She had been living
quite happily in the main tank with about 10 males to meet any desire
she might have. Anyway she was lying on the bottom of the tank, panting.
I removed her immediately and placed her in sick tank, thought it could
be parasites so gave her several 5-minute freshwater baths, but these
did not seem to help. I had checked all parameters of large tank the day
before so I knew the water was pristine, no other horse was stressed.
When I was putting her back after a freshwater bath, I was supporting
her upright for a few minutes to see if she could hitch somewhere. I
applied very slight pressure to her belly, and out shot masses of orange
stuff. I collected some and checked under the microscope and it looked
very much like roe, but the yolk was almost smashed, with globules of a
fat-like substance within the centre. We've had roe before, due to
unsuccessful egg transfer, so we picked up some of bottom of tank and
checked it out! I put it down to women's problems, egg bound, could not
discharge unfertilized eggs, these became rotten within her and
therefore caused perhaps fever like symptoms."
Egg binding is uncommon in seahorses. Most females have no problem
simply dumping their eggs and spilling them on the bottom when a
receptive male is unavailable. But there are two circumstances that
sometimes promote egg binding. One of them is when breeding seahorses
are kept in a tank that's too shallow. Courtship will proceed normally
and the female will hydrate her clutch of eggs in due course, but the
pair will then be unable to complete the copulatory rise due to the lack
of depth. In such a situation, the female is very reluctant too dump her
eggs while a receptive male is standing by, eager to receive them. If
she retains the ripened eggs too long in hope that they will be able to
complete the egg transfer despite the inadequate vertical swimming
space, she may become egg bound.
The other situation that may predispose females to egg binding is when
the sexes are segregated. For example, Heather Hall reports that the
London Zoo was so successful in breeding and raising the prolific Cape
Seahorse (Hippocampus capensis) that, at one point, they were forced to
separate the males and females in order to bring a halt to the
population explosion that resulted (Bull and Mitchell, 2002, p 30).
However, they were soon forced to abandon their experiment in enforced
abstinence because it proved stressful to the seahorses and the isolated
females began developing swollen abdomens and experiencing difficulty
with egg binding when deprived of the opportunity to breed (Bull and
Mitchell, 2002, p 30).
There is no ready cure for egg binding and attempts to manually massage
the eggs from the body usually only result in internal injuries.
However, there is a folk remedy that's commonly used to treat egg
binding in freshwater fish. This treatment consists of placing the
affected fish in a bath of Epsom salts (magnesium sulfate) for 10-15
minutes at a dosage of one tablespoon of Epsom salt for every one-gallon
of water (Duedall, 2004). The Epsom baths are repeated once a day until
the patient recovers (Duedall, 2004).
I have no idea if this remedy would have any affect on a marine fish,
but many freshwater hobbyists swear by it, and egg binding is fatal if
unresolved so you really have nothing to lose by trying it. Epsom salts
are certainly inexpensive and readily available. If you want to give it
a go, I suggest administering a 10-15 minute freshwater bath with one
tablespoon of magnesium sulfate per gallon added to the bath water. Mix
in the magnesium salts thoroughly, aerate the container, and observe the
usual precautions for any freshwater dip. Repeat once daily as needed.
As always, prevention is the best cure. If you provide your seahorses
with a reasonably tall aquarium and avoid separating the males from the
females, there is a very good chance you will never see a case of egg
binding. <end quote>
In short, Mark, if your female's abdomen appears swollen, particularly
around the area of the vent, then I suspect that she may be egg bound.
The prognosis is poor in such cases, but the condition is not at all
contagious and no pathogens of any sort are usually involved, so the
rest of your herd should remain unaffected.
Prolapses will often repair themselves once the internal pressure has
been relieved, so if you can induce your female to release her clutch of
eggs, possibly using the Epsom salts as described above, there is a
chance that she may recover. But the chances of a good outcome are slim
once the pressure from egg binding has reached a point where tissue and
compressed ova begin to extrude through the vent. To give you an idea of
how much pressure can build up in these cases, a female will often lose
30% of her weight when she drops a clutch of eggs or transfers her
ripened eggs to a receptive male. So the reddish mass that is protruding
from her vent now is really just a fraction of the tip of the iceberg,
so to speak...
If your female is not egg bound, the only other possibility that occurs
to me is that the objects protruding from her vent may be intestinal
parasites, particularly worms of some sort, which is something that
should be considered seriously if she is a wild seahorse. I have
occasionally seen reddish worms protruding from the vent of wild-caught
seahorses, although these are typically visible only sporadically,
rather than for days at a time. In the unlikely event that the objects
protruding from her vent our intestinal parasites, they should respond
very well to treatment with Fenbendazole (brand name Panacur), which is
an anthelmintic or deworming agent, or with an antiparasitic such as
Praziquantel. Let me know if you feel such treatments are warranted in
your case, sir, and I would be happy to provide you with complete
instructions for administering the Fenbendazole or Praziquantel.
Best of luck treating your ailing female, Mark.
Respectfully,
Pete Giwojna, Ocean Rider Tech Support
<Thanks much Pete. BobF in Kota Kinabalu> |
Hippocampus capensis aka Zulu
Lulu Seahorses – 07/30/07
Bob did a great job with your query. There are just a couple of things I
would like to add and reinforce. 10g is to small for all the usual reasons small
tanks are not recommended as well as I believe they need more space. 20 would be
good and 30 even better. They seem to be bottom dwellers and love to cruise
around along the substrate and IMO a bigger footprint would be better for them.
Since they do spend so much time on the substrate a softer finer sandy substrate
would be best for them….anything rough or sharp is a potential risk for cuts and
scratches that could get infected, because they actually drag their tails and
bellies on the substrate. The information about capensis doing well at higher
temps and showing prettier colors is very dated information. The pretty colors
are not worth the risk of their health IMO. Please do not attempt to keep them
at 77 to 78 degrees. This is a certain death sentence for them. They are
adorable little creatures no matter what color they display. They do not do well
at warmer temps it will more than shorten their life span. Everyone I know of
including myself who attempted this quite a while ago lost their capensis to
tail infections and as a matter of fact some of those people were able to "cure"
them for a while by lowering the temps. They are indeed a temperate species and
most definitely need a chiller. They should be kept in the 66 to 69 degree
range. I would not even attempt 72, which is the upper end of the documented
range for them. I hope this helps. Leslie>
Re: Hippocampus capensis aka
Zulu Lulu Seahorses... sel., hlth. – 07/30/07
<Hi there, I apologize for not checking my mail box and answering this in a
timely fashion. I do have a little additional info to add to Bob's response to
your query.
You can find info on the use of Pancur for treating hydroids on the
www.oceanrider.com web site. As for capensis being able to eat the Hawaiian red
feeder shrimp, you would be surprised they can. They are actually quite
determined little eaters. If their food is to big to go down in one snick they
will keep snicking until it is gone. I have seen them tackle some good sized
mysis. Yes female seahorses can get subcutaneous and generalized gas bubble
disease. They however do not seem to be as prone to it as the males are, in my
experience.
Hope this helps. Leslie>
Seahorse Loss 7/5/07
Hey guys!!! <Hi Bill, MacL here with you tonight.>
Wanted to know what I did wrong. Have a 24g AquaPod reef tank. Have 2 seahorses,
2 Blue Reef Chromis, PJ Cardinal, Firefish Goby and a Mandarin Dragonet. I
pulled my 2 seahorse out and put it in my 55 gallon where I have another
seahorse and 1 Chromis and that's its. Been working on the smaller tank so I
don't have much in the bigger yet. Anyways, I pulled them out cause I needed to
redo my live rocks cause I have about 8-9 different corals and it was getting
kinda sloppy in there. The next day I notice ONE of my seahorses acting weird by
laying against a rock. Now when I moved them they didn't touch air. The whole
move was done under water. So I pulled her out of my tank and put her back in
hers thinking she was home sick. I know these seahorses stress real easily. So
that night she was acting even worse. She would not use her tail and would
bounce off of it like Tigger from Winnie the Pooh. So I looked at her tail and
it was starting to peel its skin and you could see the white. <Do you have a
heater in either of the tanks where she could have grabbed onto it? I've seen
this happen when the seahorse grabs the heater and gets burnt badly.> So then I
knew something was wrong. The other seahorses are fine. The next day (4th of
July so I couldn't go out to buy her meds) her whole tail was peeling its skin
and by the end of the night she was dead. <Unfortunately this sounds just like
what I saw with a friends seahorse after it got burnt by the heater.>
WHAT THE HECK HAPPENED?!?!? It happened so quickly. Everyone else is doing just
fine. I tested the water and everything checked within specs
Thanks
Bill M
Re: Seahorse homicide, hlth, sys –
07/18/07
<Hey Bill, sorry about the delay in response. Unfortunately life is kicking
me in the pants lately.>
I didn't think of that but the only tank that has a heater is the 55 which is
the tank I put her in when I was doing the move but the heater barely ever turns
on and my other seahorse is always attached it and nothing has happened to him.
<I always recommend not having internal heaters or having the heater placed
behind something with a seahorse because all it takes is one time for it to turn
on while the seahorse is holding on and they are just such tempting things for
the ponies to grab onto.>(knock on wood). Can it be something else or do you
think she was more sensitive than the other seahorse? <I really believe it
turned on and got her. I'm sorry for your loss. But on the bright side that is
something that is very correctibly for your tank and the safety of your babies.
Good luck, MacL>
Seahorses... hlth... no data of use
6/21/07
One of my seahorses seems to has developed a problem. The tip of His tail
appears to have turned white and he seems to have trouble holding on. He is
swimming but does not do so as freely as he always does. Is the tip of the tail
turning white a symptom and what can I do to cure it.
Grewsh
<Doesn't sound/read good... And no useful info. re the system, maint., water
quality tests, foods/feeding, tankmates... Please read here:
http://www.wetwebmedia.com/seahorsdisfaqs.htm
and the linked files above, and review the seahorse health archives on
OceanRider.com
Soon.
Bob Fenner>
Infected Tank??? 6/20/07
Hi Crew,
<Cindy>
Bob, Anthony and Eric. Thanks for all your help in the past. I have
successfully, with your assistance as well as the help of a wonderful and
financially supportive Husband, built a beautiful Seahorse Paradise over the
past year. I find myself once again thrown into a learning curb (hard lesson). I
have a 120-Gallon Oceanic with trickle filter and sump system. I use the sump as
a refugium, set up with live sand and Chaeto Algae's. I have 100+ lbs. of live
rock, 3-4 inch sand and Aragonite mixed bed. Corals include LPS' mostly, few
leathers (don't like my nitrate issues) and two plating Montiporas. My water
perimeters are Ammonia 0, even with deaths in the tank, Nitrites 0, PH 8.3,
Nitrates 20-40,
<Mmmm>
Only drops below 20 right after water changes. I do water changes of 20% once
weekly. I vacuum substrate daily of debris and food waste (which accounts for
another 20% weekly). I know the nitrates are high for corals. Bob had improved
them greatly with the suggestion of the sump and thickening the sand bed.
<May want to add more still>
I have a seahorse set-up, which requires extreme feeding circumstances
<And hard to accomplish both in large/r systems... getting enough food to the
horses...>
(any other nitrate lowering suggestions would help). The real problem is the
latest additions to my tank were not, AS ADVERTISED, Tank Raised. I find myself
losing Ocean Rider Seahorses;
<Bunk!>
I have successfully kept for a year. Pete Giwojna thinks the tank is possibly
infected with Amyloodinium or Uronema.
<REAL trouble>
My question to you is.... with Corals mentioned above, 8 Seahorses remaining,
12+ Peppermint Shrimp, 12+ Astrea Snails, 12+ Scarlet crabs, 3 Banggai
Cardinals, 1 Jawfish Goby and a bio load to die for, How Do I treat the Tank? I
am ready to destroy a years worth of work and thousands of $$ to Nuke the tank
in order to reset with all fake ingredients for Seahorse safety. I don't know
what else to do. I can treat seahorses, corals, live rock and sand all separate
if need be, but what will assure me I will not re-infest everything when
introducing back to main tank. What should I discard i.e., cleaning crew,
Macro's, etc? Please help. I have to get this system back in line before I lose
the rest of my stock. I have searched your site and read through all my books
(mostly from you guys) but as you can see, I have a pretty isolated problem,
which is going to take the expertise of several professionals in different
fields. Thanks for being there and for your advice even if it means starting
over.
Cindy
<A bunch of trouble... but I would remove all the fishes to other quarters and
treat with (sequentially, one, then the other) an intermediate (moving the
fishes to likely two sub-systems... one for the horses, the other for the other
fishes... for maint. issues), a pH-adjusted FW bath and formalin immersion (see
WWM re) and two weeks later Chloroquine per here:
http://www.wetwebmedia.com/amylloodiniumart.htm... We (you, I, PeteG) can/should
"chat" re this process if you feel uncomfortable. Bob Fenner>
Infected Tank??? Seahorses f?
Bgrd.s 8/15/07
Hi Bob,
<Cynne>
Thanks for the response. I cannot believe I passed up the opportunity to have a
three-way chat with you and Pete.
<Heeeee!>
That was like inviting a groupie back stage, seeing as how I am a huge fan of
you both. I have been very busy trying to treat individual specimens in two
separate tanks. I pulled all horses and began treatment for bacterial, parasitic
and fungal infections all with no luck. I have only one OR survivor. Everyone
lost appetites and slowly gave up the fight. Strangely enough I left all
cleaning crew and fish in the main tank and treated it with Rally Reef.
<Mmmm>
The shrimp, snails, and
fish are all fine?
<Likely so... this product is a placebo at best>
Needless to say the nitrates have diminished alot
<No such word>
of the corals, or at least I believe that’s what caused it. My question to you
now is, I would like to tear down this tank and reseal it (using the advice I
have found here) as well as paint the background blue. The tank is about 8 yrs.
old and currently has the black background. I went through all the archives on
building as well as repairing tanks and could not find out if there is a safe
way to go about this.
<Sure there is...>
One of the excerpts I read said that pool paint could be used in ponds. I also
found that tub and tile epoxy (baby safe when cured) had been used in some cases
on aquariums. The tank is a glass Oceanic; will these materials adhere to the
surface and be fish safe?
<Mmm, yes... but I would just use a water-based latex paint here>
Or should I try to find a Plexiglas material and cover the backing?
<Nah>
Thanks again for all the time you sacrifice to make this hobby less stressful
for others. My plan now is to try my hand at a species only tank with Scorpion
fish and Anglers. I will be back in touch when I get to the restocking stages
Thanks Again Cynne
<Welcome. BobF>
Seahorses SOS 6/15/07
HI,
<Hello>
I'm sorry, but I have not looked on your website for the answer on my question
and I am hoping for a quick response. <Usually quicker to search yourself, often
mails can go hours or days without answers.>
I have a 30 gallon seahorse tank that has been up and running for 2 years with
no problems. I moved the tank to a different location and did a large water
change (about 75%). One of my seahorses is laying on the sand bottom not looking
to happy and I noticed that the plant that is in the tank is turning yellow and
there is green balls on top of the leafs (it looks like the color is being
pulled out of the leafs thru the pores).
Please help my seahorses I don't want to lose them.
Thank you, Diana
<Sounds like something is off with the new water. Check its parameters and how
it compares to the previous readings. I try to limit any water change to less
that 25%, and just do them more often when I need to.>
<Chris>
Seahorse problem, no useful data 5/14/07
I have had two seahorses for over a year now with no problems. They eat
well, and were doing fine. But about a month ago, I found one dead that was
basically white in color, due to the bristleworms eating it. Now, my female, I
notice is losing it's tail. It's turning white, as if a parasite is eating it
alive.
The seahorse is still eating, and from the very beginning I have always done
water changes every week. I am not good with knowing what to treat them with, or
with medications. I've really never had to before with my other fish, except
ich. I read that a freshwater dip works well, but I am afraid of having the fish
suffer anymore than it already probably is. Any info would be very
appreciated. Thanks, Eddie V.
<Need much more information here... re your system set-up, maintenance, water
test results/history, foods/feeding... I do strongly suggest your joining,
browsing one or more of the seahorse BB's... and writing to Pete Giwojna,
perusing the archives of OceanRider.com's site. Bob Fenner>
Re: Lugol's Dip and Gorgonians, Pete, will you take a look at, refer? &
bacteria f', human dis. – 4/10/07
<Yowsa Pete! Thanks as usual for this dissertation! BobF>
Dear Mark:
Bob forwarded your email to me and asked me to lend a hand with
your dilemma. It's very difficult to say what may have caused the demise
of your H. kuda but I would be happy to share my thoughts on the matter with
you for whatever it's worth, sir.
Like all fish, seahorses do occasionally develop various granulomas, malignant
neoplasms, tumors and fibrosarcomas associated with certain diseases or the
aging process, but these primarily affect internal organs. Furthermore, such
growths are not characteristic of vibriosis and, judging from the symptoms you
described -- or lack thereof -- it seems unlikely that a Vibrio infection was
involved in this case.
I am more concerned about the possibility that the tumor may have been
a granuloma symptomatic of a Mycobacterial infection. Granuloma disease
is caused by gram positive, acid-fast bacteria from either the genus
Mycobacteria or the closely related genus Nocardia invading the tissue and
internal organs and organ systems. Both of these bacteria can affect the skin as
well as the internal organs, causing nodules and granuloma. And both
Mycobacteria and Nocardia can be transmitted to man, causing a localized,
unsightly skin rash after entering through a cut or break in the skin.
Here is an excerpt from my new book (Complete Guide to the Greater Seahorses in
the Aquarium, TFH Publications, unpublished) that discusses mycobacteriosis in
more detail, Mark. It may help give you a better idea whether or not the tumor
you noticed could have been associated with granuloma disease:
MYCOBACTERIOSIS, A.K.A. PISCINE TUBERCULOSIS
Mycobacteriosis is also known by the following synonyms: fish tuberculosis,
piscine tuberculosis, granuloma disease, swimming pool granuloma, fish
tank granuloma, and acid-fast disease (Aukes, 2004; Leddo, 2002a). Like all
fishes, seahorses are susceptible to Mycobacteriosis. It is not uncommon in
wild-caught seahorses obtained from pet stores and is the second most commonly
seen bacterial infection of syngnathids at large public aquaria after Vibriosis
(Bull and Mitchell, 2002, p20).
Cause:
Fish tuberculosis is caused by pathogenic Mycobacteria, of which
two different species are the primary culprits: Mycobacterium marinum
and Mycobacterium fortuitum (Giwojna, Sep. 2003). Unlike most bacteria the
plague fish, these Mycobacteria are gram-positive, and take the form of
pleomorphic rods that are acid-fast and nonmotile (Aukes, 2004). When cultured
on solid media, they form cream-colored to yellowish colonies (Aukes, 2004).
Mycobacteriosis is worldwide in distribution (Giwojna, Sep. 2003). All
fish species are considered susceptible to it (Aukes, 2004). Although this
disease can in fact infect almost all fish, certain species are more vulnerable
than others (Giwojna, Sep. 2003). The most susceptible species are
freshwater tropicals such as black mollies, all gouramis, Neons and other
tetras, all labyrinth air breathers, and most species of the Carp family
(goldfish and koi, for example), Aukes, 2004.
Mycobacteria are ubiquitous and waterborne, and the aquatic environment is
considered the disease reservoir for fish tuberculosis (Aukes, 2004).
Mycobacterium marinum has been cultured throughout the world from swimming
pools, beaches, natural streams, estuaries, lakes, tropical fish tanks, city
tap water and well water (Aukes, 2004; Leddo, 2002a). Human epidemics of granulomatous
skin disease have occurred from swimming in infected water, and in fact, this
mode of human infection is far more common than infection from exposure to
infected fish tanks (Aukes, 2004; Giwojna, Sep. 2003).
Clinical Signs:
There is a very severe or peracute form of this disease, in which fish can
simply be found dead without showing any telltale signs or symptoms (Bull
and Mitchell, 2002, p20), but that is quite rare. In my experience,
Mycobacteriosis is a chronic disease that progresses quite slowly in aquarium
fishes (Giwojna, Sep. 2003). It may take years for an infected fish to develop
any symptoms of apparent illness and much longer before it becomes fatal (Aukes,
2004).
The glacial progression of the disease makes it difficult to diagnose. Some
early signs to look out for include lethargy, fin loss, emaciation, skin
inflammation and ulceration, edema, Popeye, and peritonitis (Aukes, 2004).
There may be superficial skin lesions that take the form of small subdermal
lumps or pus-filled nodules of granulation tissue (Bull and Mitchell, 2002,
p21).
These are simply the outward manifestations of a systemic infection that may
already involve many of the major internal organs (Bull and Mitchell, 2002,
p21). In later stages, nodules may develop in muscles or skeletal structure and
deform the fish. (Giwojna, Sep. 2003).
As difficult as slow-moving TB may be to diagnose while the infected fish is
alive, once the victim expires, postmortem examination will reveal
clear, unmistakable signs of Mycobacteriosis (Giwojna, Sep. 2003). The
telltale granulomas will appear as gray or white nodules in the liver, kidney,
heart and/or spleen (Aukes, 2004). There is often black, necrotic tissue eating
away at the internal organs, and there may also be skeletal deformities.
Diagnosis is then confirmed by the presence of acid fast bacteria in tissue
sections (Giwojna, Sep. 2003).
Treatment and Control:
There is no practical method for treating mycobacteriosis or
granuloma disease at the hobbyist level. As discussed below, good
aquarium management can prevent Mycobacteria/Nocardia from becoming
problematic. Prevention is the watchword for this condition.
Transmission:
The bacteria can be transmitted through the water from open ulcers,
through contaminated food (including live foods such as shrimp or molly fry),
via feces of infected fish, or through the consumption of infected, dead or
dying fish in the tank (although the latter does not apply to seahorses), Aukes,
2004.
Contributing factors:
This disease is not highly contagious and does not seem to spread from
fish to fish readily (Aukes, 2004). However, fish TB it is often associated
with poorly kept or dirty tanks with poor water quality (Aukes, 2004). Chronic
stress from factors such as overcrowding, malnutrition, or aggressive tankmates
often plays a role as well (Giwojna, Sep. 2003).
Mycobacterium, the causative organism, is believed to be ubiquitously present,
making it very difficult to eliminate it entirely. However, if good aquarium
maintenance and management is followed, including vacuuming of the gravel along
with good filtration and regular water changes, combined with a nutritious diet
and the addition of an enrichment product rich in vitamins, the problem can be
minimized and eliminated as a cause of mortality (Aukes, 2004).
Any dead fish should quickly be removed and disposed of properly. Diseased
live fish should be isolated and treated in a hospital tank (Giwojna, Sep.
2003).
Transmission to Man:
The seahorse keeper should be aware that piscine tuberculosis is one of
the few forms of fish disease that is communicable to humans (Leddo, 2002a).
This transmission usually manifests itself as an unsightly skin rash involving
one or more granulomas on the arms of the fish-keeper (Leddo, 2002a). In severe
cases, these nodules of inflamed tissue can become large and disfiguring.
They can spread and be very difficult to eliminate. The granulomas often take
some 2-4 weeks after exposure before manifesting themselves, so the individual
is frequently unaware of how he or she contracted them and the condition very
often goes undiagnosed (Giwojna, Sep. 2003). The Mycobacteria that cause the
disease typically gain entry through a break in the skin such as a cut, scrape,
or abrasion on the hand or arm of the aquarist (Leddo, 2002a). Although
unsightly, the granulomas themselves are not a serious problem and are almost
always localized and most certainly curable in healthy individuals. But for
those of us whose immune systems are compromised by AIDS, kidney disease,
diabetes, liver dysfunction, chemotherapy or the like, the infection can
sometimes become systemic or, on rare occasions, even life threatening
(Giwojna, Sep. 2003).
Awareness is the appropriate response to the risk posed by fish tuberculosis.
The seahorse keeper should be aware of the remote possibility of being exposed
to Mycobacteria via his aquarium, and take appropriate precautions, but there
is certainly no need to be overly concerned (Giwojna, Sep. 2003).
The aquarist should merely remain aware of Mycobacteria and follow the usual
sensible precautions. Nets, aquarium accessories and equipment, and any other
items that may come in contact with the fish should be sterilized between uses
to prevent cross-contamination (Giwojna, Sep. 2003). Avoid mouth-siphoning of
the water in a Myco-positive tank (use a hand pump instead).
Mycobacterium cannot penetrate intact skin -- it only causes infection
after entering through open wounds or source, so make full use of aquarium
gloves and don't place your hands or arms in the aquarium if you have any cuts
or scrapes (Giwojna, Sep. 2003). Handle sick fish carefully, dispose of deceased
specimens properly, and scrub up afterwards. Do NOT dispose of dead fish by
flushing them down the toilet, as this is a prime way to spread disease. Place
the fish carcass in a plastic bag or wrap it in some foil and dispose of it with
the solid waste of the household. And don't feed dying fish to larger
carnivorous fish, since this an excellent way to spread infection (Giwojna, Sep.
2003).
One thing hobbyists who are worried about fish TB can do to allay their concerns
is to get their seahorses and live foods (crustaceans such as shrimp are known
vectors for Mycobacteriosis) from a High Health facility such as Ocean Rider
rather than from their local fish store (Giwojna, Sep. 2003). Seahorses at OR
are routinely screened for pathogens and parasites by independent
examiners from an outside agency (DVMs with the Department of Agriculture), and
I know for a fact that Mycobacteriosis is one of the diseases they specifically
check for (Giwojna, Sep. 2003). Thus far, multi-organ histopathology has found
no granulomas and tissue sections have revealed no acid-fast bacteria --
conclusive proof that Ocean Riders are free of Mycobacteria. <Close quote>
That's the rundown on mycobacteriosis or granuloma disease, Mark.
The very similar Nocardia is a gram positive, acid-fast, filamentous bacteria
and is even more insidious than Myco. Nocardia is closely related to the
Mycobacteria that cause piscine TB or granuloma disease and, like Mycobacteria,
it can affect the skin as well as the internal organs, causing nodules,
granulomas and pyogranulatomous cysts. And like Mycobacteria, Nocardia can be
transmitted to man, so be sure to take appropriate precautions if you suspect
granuloma disease may have caused the death of your H. kuda.
Here is some information from Paul Anderson explaining how
professional aquarists typically deal with Mycobacterium/Nocardia:
Fellow Seahorse Enthusiasts:
Mycobacterium is a genus of bacteria that are ubiquitous in almost
all environments. Mycobacterium infections occur in many (if not all)
vertebrate taxa (e.g., mammals, birds, fish, etc.). Some studies that have
looked at prevalence of infection of Mycobacterium in wild animals have often
found that a small percentage of wild animals are infected, even without
clinical signs.
The most common Mycobacterium species found in seahorses are M. marinum, M. chelonae,
and M. fortuitum. There is currently no cure for mycobacterium infections in
fish. The options available are to 1) depopulate and disinfect the system, or 2)
maintain the fish but prevent cross-contamination by observing strict
biosecurity protocols. The second option is often chosen by public aquaria with
long-standing displays, when aquaculture/production of the infected fish is not
an issue.
Many mycobacterium spp. can cause disease in humans, especially if the species
is a rapidly growing one and/or if the person is immunocompromised. Of the
three species mentioned above, M. marinum is a slow grower, and grows at
25 degrees Celsius incubation, but not at 37 degrees Celsius. The other two
are rapid-growing species and grow at both temperatures of incubation.
The significance of 37 degrees is that it is human body temperature. While
most infections of otherwise healthy people are limited to lesions on the
extremities (even with infection by a rapid-grower), there is a greater risk of
the rapid-growers to cause systemic disease (especially in immunocompromised people).
In a Myco-positive tank, the best option is not to come in contact with water or
fish; wear gloves (sleeved gloves if necessary). Avoid mouth siphoning (use a
hand pump). Having said that, in an aquarium situation mycobacterium
only causes infection if it enters a wound; it cannot penetrate intact skin.
Effective disinfectants against mycobacterium include spraying with 70%
Ethanol and allowing the equipment to air-dry, and bleach baths (I use 50ppm
bleach baths with a minimum contact time of one hour, this has been reported to
be effective against M. marinum) followed by sodium thiosulfate
neutralization baths. Ultraviolet light sterilization is also recommended in
Myco-positive systems. If you've got Myco-positive tanks among other systems,
common sense suggests performing husbandry on these systems last in your rounds.
A note on ethanol: I have found in my experience that seahorses are
very sensitive to ethanol, so I advise being very cautious to avoid overspray
into tanks (while we're€™re on the topic, has anybody else observed this?)
Check out the following for more information about mycobacterium infections in
fish/aquaria:
<_http://edis.ifas.ufl.edu/VM055_
(http://edis.ifas.ufl.edu/VM055) >
<_http://www.mdsg.umd.edu/Extension/finfish/FF9.html_
(http://www.mdsg.umd.edu/Extension/finfish/FF9.html)
>
Mainous, M.E., and S.A. Smith. 2005. Efficacy of common disinfectants against
Mycobacterium marinum. Journal of Aquatic Animal Health 17: 284-288.
Paul Anderson
Ph.D. Candidate
Department of Fisheries and Aquatic Sciences
University of Florida
That's the situation when Mycobacteria is confirmed in an aquarium, Mark.
As long as you observe the proper precautions and practice good aquarium
management, it's a problem the aquarist can sometimes live with...
Nocardia is a different matter. When Nocardia is confirmed in an aquarium, the
only real recourse is to break down the entire aquarium, discard the live rock,
substrate, and invertebrates, sterilize everything, and start over from
scratch. The problem is that Nocardia is saprophytic -- it doesn't require a
host to survive and it will persist in your system indefinitely. These bacteria
live off any kind of dead or decaying organic matter; in nature they are
commonly found in soil and wastewater -- in your tank, Mark, they are no doubt
entrenched in your substrate, live rock, filters, everything -- where they act
as a disease reservoir, ready to infect any new fish and invertebrates (or
careless humans) they encounter when the opportunity presents itself.
The risk of cross-contamination of your other tanks and specimens is
great, compounded by the fact that human health (primarily yours, Mark) is also
at risk from this organism. If your H. kuda was infected with Nocardia,
then everything in your 25-gallon aquarium has been exposed to these bacteria
and is potentially a source of infection. Leading the tank lay fallow
indefinitely will not help with Nocardia whatsoever. If Nocardia killed your
kuda, you must consider all the equipment, decor and specimens in the tank to be
contaminated, Mark -- treat them like you would toxic waste or any other
biohazard.
Even your invertebrates are a risk. Your coral, macroalgae, etc,. are all
sources of organic matter, and can therefore harbor Nocardia and carry the
infection.
Do NOT disperse your live rock, substratum, Gorgonia and soft
corals, macroalgae, equipment or accessories from the 25-gallon tank to your
other aquaria, Mark, or you will be inoculating them with Nocardia and spreading
the infection to all your tanks! And you must be extremely careful to
avoid accidentally cross-contaminating your other tanks from your 25 gallon
aquarium. Any nets, hydrometers, or other equipment used in your 25-gallon
aquarium should be sterilized after every use and not placed into or used in
any other tanks.
Avoid working in infected aquarium with your bare hands, scrub/disinfect
your hands and arms thoroughly after working on the tank, and do not place your
hands in the 25-gallon tank and then place your hands in another aquarium.
These bacteria can even be transferred from one aquarium to another by splashing
water droplets or as an aerosol via the mist generated from a protein skimmer
or an airstone. Be careful!
That is what I typically advise hobbyists when Nocardia has been confirmed in
their aquaria, Mark. I hesitate to recommend such drastic measures when Nocardia
or Mycobacterium have not been confirmed. And the tumor that you described is
not typical of the pyogranulatomous cysts that characterize Nocardia. They most
often present as greyish-white pimple like lesions on the skin.
They are often motile when manipulated and may release a cheesy exudate when
compressed. That does not sound like the hard mass you detected beneath the
skin near the vent of the H. kuda.
So you're going to need to use your own judgment, Mark. To be 100% safe, you
could discard the contents of your 25-gallon aquarium, sterilize everything, and
start over from scratch. Or you could dip the live rock, Gorgonia, and corals
with Lugol's solution as a precaution and then trust to good aquarium
management to keep the seahorses in your 40-gallon aquarium healthy and
happy. Since Mycobacteria and Vibrio bacteria are virtually ubiquitous, and
normally only become problematic when the seahorses have been stressed and
their immune systems have been impaired, I might be inclined to take the latter
course in your case. If you can provide your seahorses with optimal water
quality, a nutritious diet, and they stress-free environment, the chances are
good that your livestock will not be affected by granuloma disease or
vibriosis.
Starting out with seahorses from a high-health aquaculture facility that you
obtain directly from the breeder will further increase your chances for
success. As an added precaution, you may also want to consider installing an
ultraviolet sterilizer on your 40-gallon seahorse tank after it has cycled
completely and the biofiltration is well-established.
Best of luck with your new seahorse tank no matter how you decide to proceed,
Mark!
Respectfully,
Pete Giwojna, Ocean Rider Tech-Support
Re: Lugol's Dip and Gorgonians, Pete, will you take a look at, refer? –
4/10/07
Dear Bob:
<Pete!>
I'm always happy to help when I can, sir.
<And you do a fine job of it, I assure you>
When I receive inquiries from aquarists regarding Mycobacteria/Nocardia, I feel
it is very important to provide them with as much information as
possible because of the possibility of human transmission and because they may
be confronted with the decision as to whether or not it's necessary to
depopulate their aquarium, sterilize everything, and start over from
scratch. So I make it a point to try to arm them with all the facts they need
to make an informed decision in that regard.
<Yes... and one of the principal reasons for my encouraging the publication of
your book, your articles (as well as others... including my own!) to get
"complete answers" to folks... in a speedily manner>
Hopefully, once we get my new book on seahorses published and into the hands of
the hobbyists, there won't be a need for us to devote so much time discussing
these issues on the forums.
<Heeeeee! You'll see...>
Happy Trails!
Pete Giwojna
<And to you, Bob Fenner, out in HI, at times visiting with Carol and Craig and
their (now four year old!!!) boys, Dylan and Cooper>
Re: Lugol's Dip and Gorgonians, Pete, will you take a look at, refer?
– 4/9/07
Dear Mr. Fenner,
<Mark...>
Again an incredible honour that someone so renowned is taking time to answer my
primary question about Lugol's solution dips for Gorgonians and other soft
corals.
<Mmm, Gorgonians are, strictly speaking, not soft corals... Alcyonaceans>
My secondary reason for the question is as follows. I would also like to
apologize in advance if the same question has been double posted
<Yes. Trouble>
as I have yet to figure out the WWM system fully, nor have I learned fully how
to navigate the site properly.
<Mmm, do have to devise some "Welcome, how to use" spiel, post on the Homepage,
indices... Is generally covered in "Asking A Question":
http://wetwebmedia.com/WWMAdminSubWebIndex/question_page.htm
I suspect though that what you have been asking is "new ground">
As previously stated and which you have answered to very clearly, I know that
after a good quarantine that the risk of transferring parasites and bacteria is
minimal. I, however, need to know specifically about bacteria, especially Vibro
and Myco bacteria, as well as parasites. Does Lugol's dip have any type of an
effect on possible bacterial and or parasitic contamination in an aquarium, and
if so would a Lugol's dip help to get rid of any residual bacteria such as
Vibrio or Myco bacteria and or parasites which might have been the cause of
death to one of the seahorses in my tank. This is a seahorse only tank, no fish.
<As stated previously, this form of Iodine is at least mildly antiseptic...
bactericidal-static... but will not guarantee absolute non-transference>
The reason I ask this is at the moment I have a 25 gallon tank that has been
fallow for 6 weeks. The tank had Hippocampus kuda in it, and as I mentioned
before I would like to transfer and utilize the live rock and corals which
consist of mushrooms a Kenya tree and two gorgonians to a new tank bigger
upgrading to 40G with new different filtration and new sand bed). It would be
the home to a pair of new Northern Hippocampus erectus.
As stated the old tank is fallow at the moment because one of the Kuda passed
away from what appeared to be a tumor (we are not sure from what, as a necropsy
was not done).
The Kuda showed no external signs of infection and she ate and swam up to the
day she died, the tumor appeared from one day to the next, and suddenly she was
dead. The tumor itself was under the skin not external and was a hard palpable
non motile clearly defined mass near the cloacae proximal to the ventral fin, on
her left side, no organ involvement was apparent.
The other kuda had a fatal accident which was my own stupidity, but was never
ill, nor did he develop any signs or symptoms of the other .
<Mmm, have you posited any of this experience to the fine folks at
OceanRider.com? Am going to ask PeteG again here to chime in>
Now to the root of the problem and the reason for asking about Lugol's solution
dips for gorgonians and soft corals. I would like to utilize all the coral,
macro algae, and live rock from the 25 gallon, adding it a new 40 gallon with
the addition of more live rock to make up the difference for biological
filtration. This is where the dilemma sets in and things move into a "grey"
area.
<As previously mentioned, I would go forward with this plan>
I have been told a range of things regarding said transfer and utilization of
the live rock and corals from the existing tank, ranging from do not use any of
the things from the old tank" too risky", to "use at my own risk because it is
probably teaming of bacteria and pathogens",
<Mmm, not likely very disease-inducing (pathogenic) at this point... Perhaps a
short essay on the nature of biological disease...?>
to "it is possibly okay to use if I dip everything in a Lugol's dip, live rock
included".
I would like your professional opinion regarding this situation. The clearest
answer that you can give, taking in all the variables that are possible as I
know in this situation we are not dealing with a totally exact science.
Again it is an honour thank you kindly for your help
Mark
<I say "go" and use it. BobF>
Help Seahorse with "Webbing" 3/29/07
I am trying to find answers quickly... I pray someone on your forum might
have experience or more knowledge of this.
<Mmm, am placing this query in Leslie Leddo's in-folder... and sending to PeterG
as well... You are familiar with OceanRider.com?>
Our Captive bred seahorses have developed spider-web like markings on their
bodies. It is not algae - the web is a whitish color that stands out against
their dark bodies. It look as if they swam thru a spider web.
I was told this is a life threatening disease / parasite that no one knows much
about and that the seahorses will definitely die.
<Really? I have seen such markings on wild animals... and always considered that
it was some sort of growth that bestowed a camouflage to the bearer>
I was told that it will wipe out all of our stock we have other adults and
babies in different tanks. I can not rule out cross contamination - so I am very
concerned.
I am hoping someone on your site has some knowledge of it.
All of the tank parameters are exactly where they should of been, we have only a
small piece of live rock and 4 small hermits to clean messes and a starfish.
The seahorses are now in a hospital tank waiting treatment - any advice????
<I do hope Leslie and/or Peter will respond quickly with substantive input here.
Bob Fenner>
Re: Webbing on seahorses? Pete, would you lend us a fin? 3/30/07
Dear Mr. Fenner:
<Good gosh Pete... a thorough answer as always. Thank you... and your name came
up today while visiting with Craig down at Ocean Rider... BobF>
Yes, sir, I would be happy to help Debbie with this problem. I have seen this
condition before in seahorses and it's usually due to a gram-positive bacterial
infection (Myxobacteria sp.) that often takes the form of whitish-grayish
stringy material covering much of the body. A white, slimy coating and/or
white lines or a tracery of web-like strings on the body are very
characteristic of this condition.
This is primarily an epithelial disease that often presents in one of two ways
-- either as grayish-white stringy webbing over the body or as a grayish white
film that spreads over the fish's skin, particularly on the head region
(Giwojna, Nov. 2003). The whitish plaques spread by radial expansion and may
penetrate into deeper tissues, becoming yellow or orange due to masses of
pigmented bacteria that stack up in columns forming the haystacks that are
characteristic of the condition (Bassleer, 2000). It is commonly referred to as
"bacterial fungus" and it is often described as a milky, slime-like film that
can be observed with the naked eye (Giwojna, Nov. 2003) or as whitish stringy
material radiating over the body of the fish.
As with other bacterial infections, stress plays a critical role in the
initiation of this affliction. Aside from heat stress, other risk factors for
bacterial fungus include physical injury, low dissolved oxygen levels, crowding,
high organic loading, parasites, and high nitrite levels (Prescott, 2001b).
At the first sign of this condition, I recommend treating the affecting
seahorse(s) in a hospital tank using broad-spectrum antibiotics in conjunction
with formalin baths (Giwojna, Nov. 2003). Gradually drop the temperature in the
hospital tank during the course of the treatments to as low as 66°F-68°F, if
possible. Reducing the water temperature will slow the metabolism and
reproductive rate of bacteria in general, making them easier to control and
reducing the virulence of the Myxobacteria in the process.
The antibiotics I recommend are either Kanamycin sulfate or neomycin sulfate (or
both) used in conjunction with various sulfa drugs. If you can obtain them,
Neosulfex or Neo3 would be excellent choices. If not, you can achieve the same
affect by combining neomycin or Kanamycin with triple sulfa compound.
Trimethoprim and Sulfathiazole Sodium (TMP-Sulfa) would also work very well
for this condition. Oxytetracycline or tetracycline also work well but only if
they are administered orally (they are deactivated in saltwater and totally
ineffective if used for prolonged immersion or as a bath).
The formalin baths should be administered at a dosage of 250 mg/L. This would
equal 1 ml (cc) of 37% formalin per 1 gallon of water. This should be for a
bath of about 45 minutes to an hour, repeated as necessary.
Once it's established in the aquarium, Myxobacterial infections are highly
communicable, and it is very advisable to clean up and sterilize the main tank
as best you can while the affected seahorses are undergoing treatment in the
hospital ward (Giwojna, Nov. 2003). Combine a 25%-50% water change in your
main tank with a thorough system cleaning as previously described (Giwojna,
Nov. 2003).
Debbie contacted me at the Ocean Rider forum (_http://seahorse.com
) regarding this problem and I gave her the complete rundown on Myxobacteria or
bacterial fungus there as excerpted from my new book on seahorses, so she
should be all set.
Respectfully,
Pete Giwojna
LR Removal, and Seahorse input re "webbing" 3/31/07
Hi crew,
<Hello>
When I decide to remove a rock from my tank I would like to salvage the critters
such as mini stars, spaghetti worms etc. Is there a way this can be done? <Not
really, they are so small and numerous that it is not really realistic to
do.> What I have done in the past is to do it after a few hours of darkness
since many of them will be out prowling but I am sure I am killing many that are
snug in their crevices. <The vast majority probably.>
In regards to a question someone posed about spider webs on sea horses. I assume
he is not referring to the stringy appendages that many have (I can not recall
what they are called) and it actually looks neat (at least I think so). In any
case that is normal. <Thanks for the input.>
Thanks
<Thank you>
<Chris>
Seahorses - Normal Markings or Life Threatening Disease?
3/31/07
I am trying to find answers quickly...
<I will certainly do my best>
I pray someone on your forum might have experience or more knowledge of
this. Our Captive bred seahorses have developed spider-web like markings on
their bodies. It is not algae - the web is a whitish color that stands out
against their dark bodies.
It looks as if they swam thru a spider web.
<White markings are not unusual on many of the CB seahorse species. Markings
tend to be fairly consistent but I have seen some seahorses markings become more
or less apparent as they change color especially from light to dark.>
I was told this is a life threatening disease / parasite that no one knows much
about and that the seahorses will definitely die. I was told that it will wipe
out all of our stock we have other adults and babies in different tanks. I can
not rule out cross contamination - so I am very concerned.
< I bet you are having received the information that you did. I find myself
wondering who it was that knew enough to tell you that what you are dealing with
is life threatening and scare you half to death but had no additional
information. I am not so sure you are dealing with a life threatening disease,
at least it is not one I am familiar with and I have seen my fair share of
seahorse diseases. A photo certainly would be helpful as would knowing what
species you are keeping. The more information you can provide the better able we
are to assist you. Remote diagnosis is difficult at best, but almost impossible
without accurate detailed information. Are they eating? Is their activity
normal? Are they courting? How is their color compared to their normal
color? What is their respiratory effort like? Does it look labored? Are their
gill movements normal, rapid, deep, shallow? If they are eating, acting
normally and have normal gill movements I think you may very well be dealing
with a color change issue and not a life threatening disease.>
I am hoping someone on your site has some knowledge of it.
All of the tank parameters are exactly where they should of been, we have only a
small piece of live rock and 4 small hermits to clean messes and a starfish.
<In addition to the information mentioned above the numerical values of your
water parameters would also help us to help you. “Exactly where they should be”
could mean a lot of different things to different people depending on the source
of your information.>
The seahorses are now in a hospital tank waiting treatment - any advice?
<I would wait and watch, unless they are showing other signs of illness like
those mentioned above. Observing them now may actually be difficult since they
have been removed from their usual environment to a hospital tank. A change in
environment is stressful and can effect eating, activity and color. So, unless
they showing other signs and symptoms of illness I would return them to their
normal environment. On another note you might want to consider some additional
live rock depending on what else you are using for biofiltration. One small
piece of live rock is insufficient in my opinion. I hope this helps, Leslie>
Attention Leslie/seahorse problem 1/29/07
Hi,
<Hi Laura>
I apologize for the tardy response. I was out of town and just saw your query in
my folder.>
I had posted a 911 on the forum and was referred to you. Don’t know what’s
wrong with my horse. Yesterday a saw a large bristle worm riding on him. <Utto>
The worm fell off, but there are many bristles under horse’s neck. I then
noticed what my son says looks like a 'chunk' missing between his eyes. I think
it looks more like a divot, or a wound of some kind. I don’t know if he got
caught in some rocks or if it’s some horse thing that I know nothing about. Are
the bristles toxic?
<No the bristles are not toxic but they can cause an infection secondary to a
disruption of the integumentary system. Will they work themselves out?
<Possibly>
Horse doesn’t seem to be eating.
<The horse is most likely stressed from the bristle worm attack. It is important
you keep him eating if at all possible. Try offering live foods, like enriched
brine shrimp. The best option would be the live red feeder shrimp that
Oceanrider sells. You can get them here… www.oceanrider.com.>
What do you make of this? Laura
<I think the horse is most likely stressed from the bristle worm and wound
between his eyes. He may have injured himself on some rock and/or may have an
infection where the wound is between the eyes.
I have emailed an a good friend and associate Pete Giwojna for a medication
recommendation in the mean time keep the area surrounding the tank as quiet as
possible to limit his stress, try to keep him eating by offering some live food
and keep the horses environment as immaculate as possible, in other words do
some additional water changes. I will get back to you as soon as I hear from
Pete. Leslie>
Seahorse Feeding Problems, env. dis. 12/29/06
I have 7 adult seahorses and all have always seemed to do well,
eating heartily, that is until a few days ago. I feed them frozen Mysis
shrimp. They seem to want the food but when they snap at it, they miss. It's
as if they cannot see the food well enough to latch onto it. Any ideas?
<Yes... something is amiss here... either nutritionally (which I doubt that all
seven individuals would go blind from simultaneously) or the environment (which
I DO suspect)... Check your water quality, stat.! And/or at least start a series
of good-sized water changes (25%) or so, every few days... Bob Fenner>
Re: Seahorse Feeding Problems - 12/29/06
Thanks will try the water changes.
<Good... and do you read Ocean Rider's listserv? Very valuable info. there from
PeteG, LeslieL, others... free to subscribe. BobF>
Thanks. Do they have a website?
<http://www.seahorse.com/>
Seahorse Problems 1/4/07
I wrote to you a few days ago about my seahorses seeming to be
going blind.
You advised daily water changes. The water tests ok now except the nitrates are
a little high.
<... numbers please, not subjective evaluations... More than 10 ppm total
nitrate should be avoided>
I'm continuing the water changes.
<Mmm, and perhaps considering other means... to prevent further accumulations>
My question: the seahorses are not eating although they are ravenous. They
don't suck up the mysis shrimp, they try to bump at it gently but never eat.
I know they want the food, but for some reason they don't eat it. They see it
because they alert when it is put into the water. I have tried a feeder trough,
but they just curiously examine it, they don't eat.
<Mmm, perhaps try another source of Mysis (Piscine Energetics is excellent)...
and diminish the volume of water of the system, making it easier for these
horses to feed...>
They seem to be getting very bony, obviously because they are not eating.
I don't want them to starve to death and if there is no way to get them to eat,
I would just rather freeze them and put them out of their misery. Tell me if
there is anything I can do to get them to eat, any food I can purchase that
maybe they would filter, anything I can do. If there is nothing, I'll do what
needs to be done.
Thanks for your help.
<I am directing you (again) to the best source of information on captive husbandry of
Syngnathids... Ocean Rider's site, PeteG, LeslieL, many other excellent folks
there:
http://www.seahorse.com/
see below on their homepage for the link to their Ocean Rider Club... and read,
join with them, and write re your concerns. Oh, and please report back re your
experiences. Bob Fenner>
My seahorse is refusing to eat 7/28/06
Thank you for your fast reply, but I have yet again been plagued with
another problem. My seahorse is refusing to eat. He has never done this before,
as he always enjoys his mysis shrimp, but when I went to feed him, all he did
was look at the food, and let it pass by. I was looking for something that may
be preventing him from eating, and I noticed that his throat just beneath the
skin is red.
<Good observation, bad sign>
I am not sure what could have caused this, but I would like to know if there is
anything I can do to get him eating again, or to aid him in this problem that
might be in his throat.
Also, I checked my water and everything seems to be just fine. I was also
wondering, if what you stated could be the problem with my eel, is it possible
that this could happen over the span of a couple of days. One day he was looking
normal, and two days later, is when I saw what was wrong.
Thanks again,
Krista
<Please take a read over the archives on OceanRider.com's site, and here:
http://wetwebmedia.com/seahorsdisfaqs.htm
and the linked files above on Seahorse Feeding, Disease... Bob Fenner>
Your seahorse medicine chest piece 6/8/06
In a message dated 6/2/2006 9:40:19 PM Central Standard Time,
fennerrobert@hotmail.com writes:
Pete, is there a URL we might refer people to for this excellent reference?
Bob Fenner.
Dear Sir:
<Just Bob Peter, please>
I apologize for the lateness of this reply, but I was away on a fishing
expedition to northern Minnesota this past weekend and I'm only just now
catching
up on my e-mail.
<No worries>
Yes, sir, a version of my "Medicine Chest" piece is available online at
seahorse.com at the following URL:
Click here: Seahorse.com - Seahorse, Sea Life, Marine Life, Aquafarm Sales,
Feeds and Accessories - Seahorse Meds
<http://www.seahorse.com/Frequently_Asked_Questions/Seahorse_Meds/>
However, the information is in the form of FAQs which makes it more difficult to
read and apply, since you have to click on a lot of separate individual links in
order to access and read all the material.
<I see>
My Medicine Chest recommendations have also been posted online at the Ocean
Rider Club on Yahoo and the Ocean Rider Club message board at www.seahorse.com
in the "Seahorse Life and Care" discussion forum. Any of your readers at
WetWebMedia who might be interested in that piece could locate it easily by
logging into either of those sites and doing a search of the forum using the key
words "Medicine Chest." They would need to register with the Ocean Rider Club
on either Yahoo or the seahorse.com site, but membership is free and those are
excellent resources for anyone who is interested in seahorses. The entire piece
can be read online at the following URL's, which will take the reader to the
threads discussing my "Medicine Chest" suggestions at those sites:
Click here: OceanRider : Message: Re: Medicine Cabinet
http://groups.yahoo.com/group/OceanRider/message/10066
Click here: Seahorse.com - Seahorse, Sea Life, Marine Life, Aquafarm Sales,
Feeds and Accessories - Re: Preparing a 1st aid kit
http://www.seahorse.com/option,com_simpleboard/Itemid,/func,view/catid,2/id,11
66/#1166
<Very good>
The information in the Medicine Chest piece was actually excerpted from my new
book on seahorses, which I'm hoping will clear up a lot of the confusion
regarding the care and keeping of these amazing animals. It is devoted entirely
to captive-bred-and-raised seahorses, and covers in great detail everything the
hobbyist needs to know in order to select both the perfect system and ideal
cultured syngnathids that are best suited for his or her needs and interests,
set up and cycle a tank that's tailor-made for those particular seahorses,
and breed and raise them in the home aquarium.
<I visit with Carol and Craig quite often on sojourns to Kona and they've
mentioned this tome of yours... is it forthcoming?>
Basically, my new book (Complete Guide to the Greater Seahorses in the Aquarium,
TFH Publications) picks up where my old Step-By-Step Book about Seahorses left
off. Fully illustrated, the unabridged version of the new book will be 400-500
pages in length, making it a great deal more comprehensive than the earlier
book. As an example, the chapter on disease prevention and control is itself,
alone, considerably longer than any of the other guidebooks about seahorses that
have ever been published. The Complete Guide to Greater
Seahorses is crammed cover to cover with the latest information and cutting-edge
techniques and technology for keeping, breeding and raising the various species
of captive-bred seahorses that are now available to the home hobbyist.
<Outstanding>
It was due to be released last year (January 2005) but has been delayed and is
now long overdue.
<Typical...>
Dominique DeVito (than the publisher at TFH) commissioned the book from me in
2002, and Brian Scott (then my editor at TFH) proofed
the manuscript when it was ready and approved the text, and the book was
promptly scheduled for production. Unfortunately, both Dominique and Brian
subsequently left the company, which leaves the book in limbo.
<Happens>
Christopher Reggio, the new publisher at TFH, inherited the book project from
his predecessors, but he wants to conduct further research to better assess the
market for an ambitious book on seahorses before he proceeds. He plans to
"revisit" my book project sometime this year and decide the best way to handle
it then, but after discussing the matter with him, I am none too hopeful. At the
moment, Christopher Reggio's impression is that seahorses are very much a
specialty market, and his concern is that that market may simply be too limited
to support a major book about seahorses.
<Perhaps...>
If TFH ultimately decides not go forward with the book after all, Mr. Reggio has
agreed to let me buy back the complete rights to the book manuscript so I can
seek another publisher or pursue other options. One way or another, Mr. Fenner,
I am determined to get the book out in its entirety as soon as possible! Once
it comes out, it will cut down on the time you and I have to spend explaining
the basics to new seahorse keepers or discussing rearing protocols for
syngnathids with advanced aquarists.
Best wishes with all of your fishes, Bob!
Happy Trails!
Pete Giwojna
<Please continue to make known the status of this project. I personally will
offer to aid your publishing efforts, and it may be that WetWebMedia can/will
offer as well. Cheers, Bob Fenner>
Re: Your seahorse medicine chest piece 6/13/06
Dear Sir:
Thank you very much for your support and encouragement regarding my new book,
Mr. Fenner!
<Just Bob, please Peter>
I feel is very important that this groundbreaking volume is released in its
entirety, full-length and unabridged, and if TFH Publications isn't willing to
do that, then I will definitely be looking for another publisher or
investigating the possibility of putting the book out myself in one form or
another.
<I fully understand... and what's more, can and will assist you in what way I/we
can/may. WetWebMedia is a media business...>
That's a daunting task to say the least since I have no experience with
self-publishing or the print media and therefore have no idea where to even
begin such a project.
<A beginning is a difficult time, but not hard to self-publish given time to
learn, the funds to pay for production... folks, agencies to help with
fulfillment, sales...>
Needless to say, I would be most grateful for any advice or assistance you or
wetwebmedia could offer in that regard.
<Will gladly conspire with you... It is obvious from reading your postings,
input in FAMA, opinions of you through Carol and Craig that your intent/desires
are confluent with mine/ours... am glad therefore to aid you/them>
There has never been a comprehensive aquarium manual that's remotely like my new
book, Mr. Fenner. Thanks to the new CITES regulations protecting the genus
Hippocampus and the recent advent of hardy, easy-to-feed cultured specimens,
seahorses are a hot subject right now at the very peak of their popularity with
hobbyists and the public alike, and my new book will tap into that wave of
interest and help to bring a lot of new people into the hobby.
<Yes>
I certainly will keep you updated on the status of my book project, Bob. I have
attached a copy of the first chapter of my new book to this e-mail. Please skim
through it if you have a chance, since it explains why this is such an important
book for seahorse conservation and the aquarium hobby, and why I think it will
be so popular with aquarists and non-aquarists alike. I would value your
thoughts and insights on this matter very much.
<Will take a look and write back re>
All my thanks for your interest and encouragement, sir!
Respectfully,
Pete Giwojna
<A pleasure my friend. Bob Fenner>
Seahorse lethargy/disease question... Over-mis-stocked tiny marine tank...
with real (iatrogenic) troubles - 5/19/2006
WWM Crew-
<Shovon>
You guys have given me more information over the past year than both of my
LFS's, and every other website I've ever read, combined. I just wanted to extend
my gratitude for all of your help and valuable info. I'd like to also thank you
ahead of time for helping me out with something I'm currently unable to figure
out, or find anywhere on your site or other sites.
<Okay>
I have a pair of yellow Hippocampus kuda's and housed them in a 6 gal tank -
with plenty of feather and grape Caulerpa, some stray xenia, and branched LR -
drilled to my sump (already attached to another system). They've been fine for a
month, eating several SW grass shrimp per day (at times loaded with Cyclop-Eeze,
etc). Their only tankmates are two tiny hermits (red and blue legged), a
Nassarius snail, and a small mandarin goby.
<Hard to keep this last in such a small system... mainly starvation issues>
I'm currently attempting to convert the horses to frozen mysis, but it doesn't
seem to be working yet.
<Takes a while at times...>
My problem is that the male has become extremely lethargic, mainly hanging out
in one corner of the tank and only moving occasionally.
<... have just gotten off the phone with Carol... Cozzi-Schmarr, of Ocean
Rider... the company out here in HI that produces seahorses for the ornamental
trade... What you have is likely the "cheap" Vietnamese wild-collected kudas...
these very often have troubles>
He responds to new grass shrimp dropped into the tank, and nips at them if
they're nearby - but no longer chases them. He hasn't eaten in 4-5 days, but the
female comes by and eats all of the shrimp I put in every day. He appears
emaciated (obviously due to the lack of eating), and his face and tail remain a
dark color during the day - when both horses usually turn yellow.
Ammonia (.25-.5)
<... needs to be zero>
Nitrates (0)
Nitrites (0)
pH (8.1)
Salinity (1.024)
Temp (78.5)
Ammonia has always been 0, but recently due to the fact that I have been feeding
these two a lot, it has increased. I've been doing 10% water changes biweekly
for 2 weeks now hoping to 'clean up' the water,
<How to put this... a small system is hard to stabilize, keep stable... the
animals suffer as a consequence... not subsequence... "Con">
and will continue
to do larger changes over the next few weeks. I added pH buffer to increase it
to 8.3-8.4 this morning.
<In/with the change water only....>
The temp is a little higher than usual because I had a clown goby die of Ich.
<...?!>
recently and wanted to speed up the life cycle of the parasite and have my UV
sterilizer kill the tomates.
<... Tomites>
*The one strange thing I notice about the seahorse display tank is if I open the
top, It smells a little funny -
<Another bad sign... but good that you are observant>
unlike my sump or main tank, there is a bit of a metal stink. I haven't found
any metal or rust anywhere in my tank so I don't know where this smell could be
coming from. As far as the different diseases I've been able to research on
seahorses:
1. The male hasn't been scratching, so I don't believe it is an external
parasitic problem.
<Not always indicative...>
2. He's not bloated, and there are no apparent bubbles in him or on him.
3. I haven't noticed "white stringy poop" because he hasn't eaten, so I don't
think it is an internal parasite.
4. He doesn't have white nodes sprinkled all over his body, as the goby did, so
maybe not Ich.
5. And there is no rotting or flesh sloughing, so I don't think there is a
bacterial infection.
<... would take microscopic examination, maybe staining of samples, perhaps
culture... to identify>
The only thing I notice is that there are very small white flecks over his
mid-section, but I can't really say that they aren't part of his coloration
(I noticed he had black, white, and red 'freckles' all over him from when I got
him, and they weren't node-like and never bothered him before). If it is Ich.,
wouldn't these grow into white clumps/nodes large enough to notice?
<Mmm, not necessarily>
I'm a microbio major, and learned a lot about Vibrio spp. recently, as well as
other marine bacteria.
<Can be real problems in captive aquatic systems for sure>
I'm worried that there could be a Vibrio infection, but I don't even know how to
diagnose for this.
<You will>
I've also read a lot of posts talking about how an antibiotic called Neo3 (with
neomycin and triple sulfa) helps with that sort of problem. Can seahorses become
infected from ingesting shrimp whose exoskeletons could possibly be infected
with Vibrio vulnificus?
<Mmm, possibly... there are a few other inputs here... environmental, genetic,
developmental, nutritional...>
One LFS informed me that some grass shrimp have worms inside of them that I may
have not noticed. Could these have gotten into the
seahorse's intestinal tract?
<Again, possibly. Much more likely you're, or should I say your Horses are
experiencing either flukes (trematodes) and/or a protozoan (Glugea et al...)
infestation... from the wild, handling... expressing itself due to unsuitable
environmental influences>
Lastly, I had a scarlet hermit and an emerald crab die over the past week in my
main tank due to unknown causes (not to mention the Ich-ed goby). I have 4 other
hermits still alive and crawling around, a serpent star, a cleaner shrimp, a
peppermint shrimp, and plenty of snails still alive. I also have a green bubble
tip anemone and a firefish that seem healthy. These are all in my main tank. So
there are plenty of vert's and invert's healthy and eating.
<...>
Sorry for the long post, but I wanted to provide as much information as I have
been able to put together over the past week. I've been reading everything
possible, and asking hundreds of questions to both of my LFSs, and have not
found anything particularly helpful. I was told to add garlic to some grass
shrimp and hope the kuda will eat them, but to avoid any dips for now. The other
LFS said that if my water quality is fine and the horse's diet is fine, I have
nothing to worry about - otherwise if he's dying, then he is probably going to
die without much anyone can do about it. But I've not given up hope.
Please help.
-Shovon
<Do take a read on the Ocean Rider (.com) site re Seahorse systems, disease. Bob
Fenner>
Re: Seahorse lethargy/disease question - 5/19/2006
It's Shovon again. Sorry about the second email. I wanted to mention that
after the lights turned on a little while ago, I took a flashlight and
examined the seahorse closely for an hour or so. The little specs look shiny to
me when I put a flashlight up to the seahorse. The only thing that I can think
of is that they may be tiny bubbles on the skin of the seahorse, possibly from
bacteria or algae settling. I hope this might help, but I still don't know what
course of action to take. From reading all of the other posts, I don't feel
hopeless yet because there isn't an apparent rotting or hugely visible problem -
which most of the time I've seen followed by "this late in the game its gone too
far to do anything about it."
<... I would take these animals "into class"... after reading re making
skin/slime smears... use a bit of H and E stain... take a look-see... perhaps
with a prof. or two looking over your shoulder>
I know you all must be very busy, not to mention the number of emails I'm sure
we all send to you guys every day. But I really would like to treat my seahorse
with some kind of medical treatment as soon as possible if need be, and I
believe the sooner the better if there should be any chance of revival. Please
get back to me as soon as you can, I'd greatly appreciate it.
Thank you again,
Shovon.
<I agree with your stated sentiment... Do consider increasing your chances of
success with a better, larger system... quarantine... Bob Fenner>
Sick seahorses lost 2 already possibly secondary infection due to ich or
maybe marine velvet... Actually, killing ones livestock and system with
presumptions, chemicals 5/2/06
Dear Bob,
First thing that started happening was that my 2 males kept getting air bubbles.
We had to keep expelling the air from their pouches.
<Mmm, and maybe more, depending on the root cause here>
At this time we had an out break of flat worms and started treating the tank for
that.
<... with what?>
Then we noticed that the sea horses were itching and shaking and playing in the
water flow a lot.
<Uh... not playing>
We thought it was because of the flat worms but was told that it was more likely
ich. We started treating the tank with ich attack and lost 2 seahorses.
<From the frying pan...>
Then my male had babies.
<...>
Again we expelled air from his pouch and he has some bubbles on his tail and his
tail swings straight up and he can't swim well at all. All of the
females have a white film on them. It covers their eyes as well. I got on the
phone and tried to find a vet. I found one that would talk to me but
was to far away for me to go see. Anyway with out him taking a scraping from one
of the seahorses or being able to see them he thought that they
may be stressed do to the ich going into a secondary stage. We are now doing
formalin dips.
<... no...>
The vet recommended straight formaldehyde if I could find some. So what we have
done is mixed the 37% formalin with ro water.
2 drops to 3 qt. ro water to get a high % of the formaldehyde. My little babies
are scratching them selves with their tails which leaves me to
believe that all this week of double dosing the tank with the ich attack has not
done much good.
<Now you're getting smarter>
We have a pipe fish to that we have seen what looks to be the little spots of
ich.
<Doubtful>
We have a UV light hooked up. Should we put the formalin in the tank and or dip
them. Please help me save my
horses.
Thanks so much for your
time,
Cheryl
<You have poisoned, are poisoning your system, livestock. Take the time to read
re the symptoms, "diseases", chemicals you describe here... on WWM. Bob Fenner>
Quick Seahorse Death ... try reading this Lingua Nonsensa outloud
4/16/06
my pair of mustangs arrived at 5:30 pm on Friday pm they appeared very
active in the plastic container they were acclimated per your instructions
they were placed into a mature 25 gallon tank the water parameters were checked
and were all correct--oxygen was not measured
the tank has a 5 inch fine DSB the floor is covered with a heavy growth of C.
prolifera there is a live rock structure covered with green star polyps and a
nest of
cauliflower soft corals small snails and small crabs are present there are 3
cleaner shrimp there is 1 small scooter blenny a hang on protein skimmer small
sea clone is running
a eco system hand on refugium runs on the back of the tank after being placed
into the tank the horses appeared ok but survived for only 4 days-----they would
not eat any Mysis shrimp enhanced -----they refused to go down into the tank and
would only stay near water surface in the area of water flow frustrated horse
owner----what do you think--Larry
<Larry, unfortunately some animals, especially those as seahorses, simply don't
handle the "process so well." When an animal dies in such a short time after
being introduced it can usually be traced back to trauma during transit and
acclimation. This trauma causes stress amongst other things and many, many
creatures are lost this way in the marine trade.......unfortunately it is just
part of the game. They may have been doomed no matter how well planned and
executed your plan to care for them wad. My advice? Read a little more, give the
tank a few more weeks to compensate for anything "bad", keep testing
and....and.....if you have courage, try again my friend. Adam J.>
Seahorse infection, 3/23/06
Hi from Down under guys, and a cry for help I have 6 potbellied
seahorses, and have had them for about 6 months. about 2 weeks ago,
one off them, the one that was smallest when we got them, developed
what looked a bit like a lesion on his neck, sorry for the blurry
pic. He was eating and swimming ok, up until yesterday. He started
to swim wobbly, and now he looks like his co-ordination is gone. The
lesion is pale with pink or red bits in it. I don't think its an
open wound, but it looks like one. What is this, and can I do
anything for him? Thanking you in advance. Dario
<<It is very hard to tell from your pic, but this certainly sounds
like an infection of some kind. I would choose a broad spectrum
antibiotic and treat as directed on the package in a hospital
tank. In the mean time, do consider if something might have caused
a sudden decline in water quality or if your nutrition is up to
snuff (good quality Mysis shrimp are one of the only acceptable
non-live foods for long term maintenance of seahorses.) If water
quality checks out (Ammonia, Nitrite, Nitrate, Salinity, pH), I
would still consider a few decent water changes since there are many
aspects of water quality that we cannot test
for. Best Regards. AdamC.> |
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Re: Serious Seahorse Problem 3/27/06
Thank you for your quick reply. You were right that only time would tell,
and it has given me somber news. My seahorse died in my hands today. I am upset
about it, but in a way I find it better for him. His life would have been rather
difficult if he could no longer see that well, and now he doesn't have to worry
about it anymore.
<Once these sorts of complaints escalate to being visible on seahorses, they are
very hard to cure...>
I may see you guys again if have a problem with my latest tank inhabitant,
a newly hatched white spotted bamboo shark. To give you some reassurance, he is
in a 250 gallon tank where he will remain, and he is also doing very well.
I thank you again..
Krista
<Real good. Bob Fenner>
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