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FAQs about the Koran Angel Health/Disease
Related Articles:
Koran Angel, Pomacanthus
Angels, Marine
Angelfishes, Related FAQs: Koran
Angels, Koran Angel Identification,
Koran Angel Behavior, Koran Angel
Compatibility, Koran Angel Selection,
Koran Angel Systems, Koran Angel
Feeding, Koran Angel Reproduction,
Marine Angelfishes In General,
Angelfish ID,
Selection, Behavior,
Compatibility, Health,
Feeding, Disease,
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Koran Angel/Health 4/14/09
Hello, thanks for your website.
<You're welcome.>
I have skimmed through related questions on Korans and cannot find a
similar question. I have a 135 gallon tank and have enjoyed a Koran
Angel in it for about 7 months. It has grown quite rapidly to about
six inches.
It is the biggest fish in the tank and has no competitors. The last
few days it has simply stopped eating. It has always been the best
eater in the tank and will even eat out of your fingers if you hold
them still. It
Loves romaine lettuce and algae clips. I have looked at it closely
for any changes in its body. Its' color is great and looks very
healthy. The water is not great (nitrates at 20ppm) but has been at
this before and it has ate fine.
<Mmm, water quality is catching up with the fish.>
The tanks is not overstocked - would actually like to get some more
fish.
It is still swimming around some, maybe not as much as usual but
maybe I am just paranoid.
<Not paranoid, the fish is telling you something, respond.>
This is the most striking fish in our tank and hate to lose it. Any
help would be appreciated. Also, it has not changed color yet and
for a Koran of its size, many have already began to change color. A
guy at the LFS
says that it could be an age thing more than size.
<Dan, a protein skimmer is a must for keeping angels, they do
require excellent water quality and good nutrition.
I would suggest you do a 20% water change and see if the fish
responds, if so, bingo on the water quality issue.
James (Salty Dog)>
Dan Hammonds
Re Koran Angel/Health 4/14/09
Did a 25 gallon water change and the fish started swimming around a
little more. After a few hours, I fed and it ate for the first time
in a few days. May try to do another partial water change tomorrow
to get nitrates
back down some more.
<Excellent idea, and do seriously consider getting a good protein
skimmer, will be well worth the investment.>
I would be curious to hear about the changing into an adult and your
thoughts.
<In captive systems, angels grow but some never change into their
full adult look due to cramped quarters and poor nutrition.
Your 135 is not to be considered a large tank for a Koran.>
It is a big size not to have changed any. Honestly, it is one of the
few species that is better looking as a juvenile than an adult. I am
not out of the clear yet but I feel a lot better after seeing it
eat.
<Dan, do read here and related articles/FAQ's.
http://www.wetwebmedia.com/marine/fishes/angels/pomacanthus/koran.htm
James (Salty Dog)>
Re Koran Angel/Health 4/15/09
Thank you for the help.
<You're welcome, Dan.>
I do have a skimmer running and it gets a good deal of wastes.
<Great.>
I plan to change 20% today again and see if it can help drop the
nitrates even more. The angel was much more active last night and
hopefully it will begin to recoop. This is the highest my nitrates
have been since I have had the tank. I don't know why they have shot
up so high but it could be to overfeeding.
<One of the leading causes.>
I have a Copperband that I have been trying to get to eat frozen
food and it might be the cause. This is the only difference I could
think of. I am sad to hear that 135 isn't large enough for the angel
to fully grow.
<Not quite what I meant. Do read the original thread again.>
I don't want to have a tank with animals too big for it. I would
love to get a bigger tank but the setup I got was free from a
brother who got tired of fooling with it. I feed well but probably
too well but I love the
vibrant color of a healthy fish.
<Fish aren't like us, they cannot eat two double cheeseburgers, no
pickles and a large onion fry. They do not require large amounts of
food, but rather small amounts fed more often and of a nutritional
nature. Have you tried New Life Spectrum Pellets? Very nutritional
for a dried food source, is one of the foods I use. See here.
http://nlsfishfood.com/
And do read here for help on controlling excess nutrients in your
tank.
http://www.wetwebmedia.com/nutrientcontrol.htm
http://www.wetwebmedia.com/nitratesmar.htm>
Again, thanks for the help and hopefully all will go well.
<You're welcome. James (Salty Dog)>
Young Koran Angel, hlth. 8/24/08 Hi! <Hello>
Firstly, this is a truly fabulous site and so is the book by Mr Fenner,
that has become a bible for us. Brilliant! <Sarah, I wish we were
having a Guinness> I have as suggested, read the web site and
searched the Internet. for advice to help my young Koran. I am scared we
are losing him and don't know how to what to do! Purchased 6 weeks
ago, he was eventually introduced to the tank (100gls) 3 weeks ago. He
was vibrant with colour, active to the point of rowdy, came readily for
food and was at ease with his tank mates. Today, after 2 days of
deterioration, he is blotchy, lethargic, hiding and not eating. He
appears to be arching his back with all spinal fins extended, he
also keeps falling over. When I first approached the tank this morning,
he was lying on his side under a rock. He rallied himself upright
but has remained mostly hidden. He seems to have moments when he appears
to spasm, then is still again. He has 'fallen over' several times
but each time manages to get upright again. I am very worried. <Me
too... some "laying down" by this species does happen when they're
young/small... but...> Our water is spot on, with all the parameters
exactly where they should be. Apart from the blotching, there are no
other obvious signs of illness. Please, how can I help him? Sarah
ps. Sorry I can not get a decent photo, its too dark in his hiding-hole)
<Do you have another up and going system you can move this fish to? I
suspect some sort of external (Flukes, gill...) and/or internal
(lumenal) parasite issue at root here... but by the time this/these can
be addressed, it may be too late here now... Do you want to try a pH
adjusted freshwater bath (with or w/o some Formalin), moving this fish
immediately afterwards to a tank with reduced spg? Bob Fenner>
Re: Young Koran Angel – 09/07/08 Hello again Mr Fenner,
Sadly, during the night of my original message, we lost the little
Koran. It was very distressing especially as he was so small and
almost knowing that he would be gone in the morning. We didn't get to
try the dip you suggested as time had passed but at least have that
knowledge logged, for future reference. <Ahh> Thank you for taking
the time to respond so quickly and informatively. Its a good thing we
have electronic mail, your post bag would need a truck to deliver!
<And to think of the trees, pollution in making the paperwork, the
portion of incidental postal worker jokes...> Thank you for all the
work that goes into this site, it's totally invaluable and definitely
worth a Guinness! Sarah x <Now you're talkin'! Thank you for this
follow-up Sarah. BobF>
Koran angel with white small pimples in the mouth.........on the
lips..... 07/28/2008 I've had my Koran for about 3 months now and
I noticed his lips being swollen (he's 2 inches). After inspection, it
seems to look like his lips have chapped off in a few places and look a
bit swollen (maybe an exaggeration). <Have seen such before> He
seems to eat when fed and does not display any sick behavior habits
(ick, etc) Is this typical for a juvenile to show? Any ideas????
Thank you Adam <Perhaps some collateral damage from a trauma,
collection? Maybe idiopathic, tumorous... I'd be reading re water
quality, nutrition... A photo next time... Bob Fenner>
Koran Angel, sick or changing colour 2/26/08 Hello, I must
thank you guys for providing such a helpful site, but I cannot seem
to find the answer to my problem. I have this Koran angel who is
currently in a 10gal quarantine tank. <Mmm, I would be moving
this fish> He was in a 75gal with a 2 inch panther grouper, and a
Picasso trigger. <Mmm... not very compatible...> Since then
his colour has changed from blue to some sort of bleached, white
colour. <I see this> We have been feeding him marine flakes,
brine shrimp, shrimp, mysids shrimp, squid and mussels. The nitrite
is 0.25ppm. <I'd be moving to where this is zero> Could you
please help me with this problem? <Environmental... this fish's
world is sick, unsuitable. Needs to be in better circumstances...
spelled out on WWM. Bob Fenner> | 
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Re: Need help with lesions on emperor
angel 3-5-09 Hello, Crew: <Steve> I am still battling with my
emperor angel's HLLE (I wrote to you about 10 days ago with all the details),
but I am trying to do all the appropriate things. I am replying to this because
my tank setup and specifics are in a prior email that you answered some
questions on for me. My question now is actually on a different matter: Would
there be anything wrong with getting some macro algae and placing it in a
location of the sump tank with a light down there? <No... nothing wrong with
this... many thing "right"> As opposed to putting on an actual refugium?
<Better to have in both, but... the tank placement is of benefit alone> I
mean, isn't this a refugium of sorts? <The entire planet is by some views>
My LFS guy (whom I trust pretty well) tells me that there is not any room for a
refugium under my tank stand. <Perhaps one can be placed above? Or hanging
on the side... or can be easily remoted elsewhere... tied together with
plumbing...> But why can't I just add some macro algae with a light. This is
about 750 total gallons (including the sump), so it may be impossible to put
enough algae there to make any difference. <Try it and see> And what type
of algae would you recommend (if it would be possible) and also what type/power
of lighting for under the tank cabinet? <... Read here:
http://www.wetwebmedia.com/refugalgfaqs.htm and here:
http://www.wetwebmedia.com/refugltgfaqs.htm> Another question is: you
mentioned in a prior email to me about trying to grow red algae. Do you mean
coralline algae? <Mmm, not necessarily... there are more useful non-coralline
types> I do have that growing on my live rock. But I have just a small amount
of what looks to be BGA starting in little spots on the live rock. I have
redirected the flow in this fish only tank and scrubbed it off. I just wanted to
make sure I didn't scrub away some sort of good red algae that I am not familiar
with. It behaves like BGA when handling it, etc, so I am pretty sure that is
what it is. I think the culprit has been my leaving the lights off too much to
try to reduce some of the "hair" type green algae that was collecting on the
rock over time. I would just scrub that off too, but I thought leaving the
lights off would help. I will start leaving them on 10-12 hours each day (they
are actinics and VHO fluorescents) and try feeding a little less (currently feed
2x/day-but will make each amount a little smaller). I also had been adding Vit C
and Selcon to foods as well as feeding frozen cubes of the angel formula and
life line foods (which I have read on your site that additives and gelatin based
foods can contribute to BGA). So I will reduce that as well. And I have been
trying to search for info on your site about stunted growth in porcupine puffers
as well as blue cheek triggers. I can't seem to find the info. Can you direct
me?
Steve <Mmm, there may not be such information specifically... But I would try
the terms in the search tool here:
http://www.wetwebmedia.com/WWMAdminSubWebIndex/question_page.htm to be able
to see/use the cached views more readily. Bob Fenner>
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Koran angel
fungus? 12/24/07
Hey crew merry Christmas to you and yours <Peace, good will...>
Need help ASAP. I have gotten <How long ago?> a Koran angel from
a LFS he is eating very well, alert and curious. However, He seems to
have this white colored film growing on him. Looks like a fungus.
<Mmmm... would be exceedingly rare if this were a true fungus...> It
has eroded some of the edges on his pectoral fins and given them a pale
white translucent color as opposed to the normal clear transparent
color. this does not seem to be ich as it is not raised protrusions
this is more a film or a better example would be when you do a fungal
assay the white subtly fuzzy film of certain fungi that appears. I
realize this could also very well be a bacterial infection. either case
this fish is quarantined (of course) in a 55 gallon aquarium with a 30
gallon sump water <Ah, very good> is reef quality 0 ammonia, 0
nitrite, < 10 ppm nitrate, calcium 400 ppm, ph 8.3. I have removed
carbon and turned off protein skimmer. I have dosed for the last 48
hours in malachite green. I have not seen any real improvement. now I
have realize that if it is in fact a fungus that I would probably need
to use a sulfur type medication. <Likely you mean Sulfa...> do
you have any recommendations? <Yes... just simple observation for
now> also if it is bacterial which regimen of antibiotics should
I use. <Best not to...> Don't be afraid of giving a complicated
answer I am a veterinary technician pursuing a bachelors in marine
biology I have access to all chemicals and medications. please be as
specific as possible. thank you all so much for what you do. its people
like you who helped me to see my goals in this field to fruition. God
bless you Regards Daniel Bock <IF you were a
wholesale/intermediate facility I would have done a prophylactic
dip/bath (see WWM re) going in/out of stages/systems here... IF you
think it will help (sans any sensitivity testing) I MIGHT utilize a
Furan cpd. (perhaps Nitrofuranace) at 250 mg./ten gallons... as an
antimicrobial... If your employer will allow it, I would do a simple
"mucus swipe" look/see here (see Ed Noga, "Fish Disease, Diagnosis and
Treatment"... Again, I am very dubious that this situation is
mycelious... and it is highly likely that actual "treatment" of this
Pomacanthus may do more harm than good. Bob Fenner>
Koran Angel Hi, I recently had written to you about the Koran
angelfish. I finally bought one that was in prime condition. (He's a
changeling, he has a yellow strip on him now.) The problem is his right
eye has clouded up a bit and his left one is normal. What's going on?
The water is good and he's eating really well. (I feed him 6 small
servings a day, each serving is finished in under 2 minutes). What could
be wrong??? Any insights would be GREATLY appreciated. Thanks.
David. >> If it's only the one eye, the cause of the cloudiness is
likely some sort of mechanical injury... like a brush with a rough net
when the fish was moved... And it will self-cure... That is, you need
only do your best to optimize and stabilize the animal's environment. If
the cloudiness were on both sides, there might well be a real issue of
poor water quality or infection... Be patient, the opacity may take a
few weeks to heal completely. Bob Fenner Koran Angel
thanks, Now that you mention mechanical injury, I think he might have
bumped really hard into a rock when I turned on the lights when I
thought I heard a mantis shrimp in my tank. Thanks for the
reassurance. David. >> Ah, I suspected as much... take it easy
always on the sudden lighting issue... turn the "house lights" on and
wait a good ten minutes before turning on any/some of the tank ones... a
big deal, yes. Bob Fenner, glad to render reassurance.
Koran Angel Now there is a bigger problem, His eye is swollen now
too, and looks as though it may explode. You can't see it's pupil
anymore. All you can see is he out side of the eye and looks damaged.
David. >> And a tough call... if the eye is totally damaged to the
point of loss... this may happen... if it is intermediate... it may
warrant a swab of antiseptic (much the same as humans)... if it is only
slightly damaged (not possible to assess at this point), it isn't worth
the further trauma of netting, handling the animal... The long and
short of the situation: I would wait a few days to see what transpires
(not surprisingly Latin for "looking through" or across) Bob Fenner
Koran Angel Umm, have you seen a condition where the eye looks as
though it's swelling out of the socket? It's taking the eye cover with
it. So it may be grim right? Thanks for all our advice. David.
>> Not necessarily... hang in there... the eyes of fishes like
ourselves are highly vascularized... lots of blood vessels... and
subject to similar edema/swelling with physical trauma.... give the
animal time. Bob Fenner Koran Angel This is David
again, Recent developments in my fish are: Both eyes are now
cloudy, I suspect that he is really skittish and might have bumped into
another rock. His eyes haven't exploded yet. There is skin like
material coming of his eyes. (I'm suspecting a type of fungus.) Any
ideas? David. >> Hmm, well, I would at least consider moving
the distressed animal to a quarantine/hospital tank... if you have
one... and keep the lights low... If the problem continues to
progress/worsen... I would further consider applying an antiseptic to
the fish's eyes (with a "q-tip")... and if it looks even worse... and
persistent, consider mixing in antibiotics into its foods... the eye
discoloration is not fungal... maybe bacterial... Bob Fenner
Koran Angle I have a Koran Angle it is about 11/2 in size. I have
had it for over 1 year it has started to lose its color on its face how
should I treat it >> Really? A Koran (Pomacanthus semicirculatus)
that you've had for more than a year... and it's only one and a half
inch long?... The color loss is due to either poor water quality, or
more likely in your case, to a lack of nutrition... Make sure the fish
is getting its share of food, twice daily... and soak/treat the food
with a commercial vitamin/iodine prep.... Bob Fenner Three
weeks ago we purchased a Koran angel from a chain pet store, and
noticed that this gorgeous fish was in a 20 gallon tank with
four other fish, so we wanted to save it from these horrible conditions.
The Koran's juvenile colors were dull, and we assumed that maybe he was
beginning to change to his adult colors. But after two days in our tank
(65 gallon), his colors became vibrant and he was eating very well. For
the past couple of days, the Koran has stopped eating, his colors have
become dull once again, he has developed some corrosion around his fins,
and his eyes are so glazed they look white. All the levels in the tank
seem to be normal, we did just add a sea anemone and two clownfish, but
all of them seemed to be coexisting fine. We do not want to lose the
Koran, so if you could provide us with any solutions or ideas to what is
ailing him it would be appreciated! We do have two invertebrates in the
tank, but they can be moved to another tank if necessary (The Koran
cannot be moved because of his size in proportion to the other tank).
Please respond immediately, we don't want to lose him. >>
Unusual... and maybe related to the presence of the anemone... but, if
it were me, and especially if I had no other place to move the animal I
would leave the Koran in the tank it is now and hope for the best...
this species (Pomacanthus semicirculatus) often does seemingly
miraculous turn-arounds... Subdue the lighting for the next few days,
add a biological cleaner organism if you can (my fave, a Lysmata
amboinensis Shrimp) and try to be patient. Bob Fenner, who's article
on this favorite Indo-Pacific Angelfish can be found archived at the
URL: www.wetwebmedia.com Hello, first of all thanks for the help.
I have another question. My Koran Angel doesn't seem to be getting
better, maybe it is, maybe its not. Its in a treatment w/ copper
since it has ich. It also has another ectoparasite like bumps. what
could it be. thanks. >> Either a type of external
parasitic/infectious agent, its effects/response by your Angel, or
possibly just a reaction of the fish to something disagreeable in your
water. You might consider scraping a bit of this material off and
looking through a simple microscope... the QVX Intel/Mattel unit that
hooks up to your PC works great for this and is cheap... 100X should
do... To reveal whether there is a critter involved or no... And in
any case, do check what you can re your water quality... and do the
default water change/gravel vacuuming, cleaning your skimmer, adding a
unit of activated carbon in the filter flow path... To see if this has a
discernible effect. If the specimen is eating otherwise, perhaps time
just has to go by.... Lastly, if the copper treatment has run its/a
two week course, do discontinue it... this may be harming the animal
more than helping as well. Bob Fenner Koran angels
Greetings again Robert, I'll cut to the chase, i can't keep Korans
for toffee, I've bought three young adults in the last two years all
healthy and feeding when purchased but all dying in less than six weeks
. <Time to look for a new source... or your system for something
wrong. Pomacanthus semicirculatus is one of the toughest angel species>
I've noticed they do seem susceptible to a cylindrical eye and body
parasite that is only killed by a fresh water bath but then so are most
of the Angels i keep' I currently own, Queen, Blue Queen, French
,Black, Blueface, Majestic, Six-Bar, Chrysurus, Asfur, Passer, Maculosus
and Cortez Angels and apart from the two Cortez's and one of the
Six-Bars I've owned them all for six months and more ,in fact some for
nearly three years so why can't i keep Korans ? <Look into buying
them from Marine Center... someplace else than where you've been getting
them> could it be that it is one of the industry standards like
Powder Blues that despite being common in the hobby really do not do
that well or knowing that they are hardy am i subconsciously not keeping
them as well as i should ,anyway i hope you could shed some light on my
plight...Thanks Graham.H <Read and heed:
http://wetwebmedia.com/korana.htm Bob Fenner> Koran Angel
Hello Bob, First I would like to thank you for putting up this great
site, it has helped me so much. My question is that I noticed that one
of the gill spine on my Koran is missing, Will the gill spine grow back?
I think that the missing spine was caused by rough netting. Thanks again
Peter >> <Thank you for your encouraging words, and allow me to
reciprocate: It is likely that the opercular spine of your Koran will
indeed grow back... and you are correct (at least we're in agreement)
that this defensive mechanism is often broken, damaged by handling.
Bob Fenner> Koran Angel Bob, Thank you so much for
answering all the questions that come your way. You are a valuable
resource to the hobby. I have read your CMA book (many times) and
browsed the site (many times). <Mmm, maybe more than me> My
question is regarding a new 2.5" Koran angel that I added to my 40gal
tank <You know this tank is too small, and is becoming smaller...>
about one week ago. He spent two weeks in quarantine following a dip
with Methylene blue, problem free. He has been eating and socializing
well with his other tankmates, which consist of a 3" Bennetti puffer, 1"
percula, 3" yellow tang, 3" cowfish, cleaner shrimp (not bothered at all
by puffer - weird). <It will be consumed in time> Tank
parameters are all ideal, nitrates are at 20, nitrites and ammonia at 0,
pH at 8.2, temp at 80, salinity at 1.023. Have an eclipse hood with a
Remora pro skimmer & 25lbs. of live rock. The tank has been up and
running for about 9 months. Just this afternoon, I noticed four or five
spots about the size of a pencil eraser or smaller on the side of the
angel that are pale, like they have been erased a little. I am a bit
concerned because I had a majestic that started off with this problem
after several days in quarantine. It progressed and looked as if the
scales were sticking out of the fish instead of laying flat, no eating,
hiding, and death. I know now that this fish was not a great choice, and
an now trying my luck with the Koran. My guess is that water quality may
need to be improved (I change 5 gal every two weeks now), vitamins added
to food, and time. Is this OK or am I way off target? <Other than the
small size of the system, no real worries... The markings are not
unusual for this species... more of a "mood" thing than absolute health>
Any input is greatly appreciated as I love the large angels, but am
becoming discouraged quickly. <Come on a dive trip with us... And/or
get a much larger system... Bob Fenner>
Koran -what is it? Hi Bob, I have a quick question, I have
one fish only in a new (one month) old 90g tank seeded with 15 lbs
of gravel from a 5 year old reef tank. It has 50-60 lbs live rock
and 50 lbs reef rock that was in the reef tanks sump 1/2 for a week
and 1/2 for three weeks. Water parameters all within spec. My only
fish a Koran Angel has been in for about two weeks after two week
quarantine. He eats well, everything looks fine except for some
"stuff" on him that I will call brown algae or slim/velvet. (I hate
to use the "V" word) This may be normal coloration except I'm sure
it wasn't there in the quarantine tank. It is not getting worse but
I want your opinion on if I need to take any action. <Mmm, no...
not as in a chemical/medication treatment. I have seen similar
"transition" coloring/markings in small specimens... these almost
invariably "cycle out" with time/growth. Do your usual best to care
for this animal... good water quality, varied feeding... and this
will work itself out> I have enclosed a picture, you can see the
brown interrupts one of the blue lines just above the fin. Any
ideas? Thanks Larry. BTW this site/email has been very quick and
responsive to my questions...you are excellent, I would pay for this
service! <Thank you my friend. Your success, involvement is what
we desire. Bob Fenner> | 
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Marine Fish Questions Dear Bob: Thank you so much for
answering my questions - I do greatly appreciate it. <You're welcome>
I am having some trouble. My tank used to have a 9 inch clown trigger
who beat up my 8 inch Koran Angel for awhile - I realized the combo was
not going to work, so I finally got rid of the clown trigger. The Koran
got nipped up a bit and I thought he had a bacterial infection. I have
read your section on parasites, but I am still confused about what I
might be up against. If you would can you see the link:
http://www.ringing.com/sickangel.jpg <I see... an abraded area behind
the Koran's right pectoral, cloudy eye.> He started the rubbing and
scratching against the bottom of the tank, his eyes are cloudy and
swollen, and now this patch on each side (looks somewhat bloody inside).
Any info would be appreciated. <Likely just the/a continuing action
from the Trigger abuse. I would not specifically treat the system, move
this specimen. Do augment its foods (HUFA's, Vitamins) and do your usual
best to keep water quality optimized and stable> Also, will this pass
to my leopard shark? Yellow Tang? Or Green Moray Eel? <Not likely,
but the presence of the Shark, its movements and wastes are likely a
contributing cause as well. Bob Fenner> Thanks A Ton, Alex
Koran Angel Hi Anthony, one quick question with my 90G FOWLR. My
Koran angel gets what I will call smudges on his pectoral fins. This
makes the fins look cloudy without and detail such as a Cryptocaryon pin
spot. In a day or two they disappear. sometimes they are gone for two
weeks, other times they come back two days later. <sounds like
mucous from irritation. Could be parasitic... I'm wondering if you don't
have 3+ F degree temperature swings between day and night. Do check>
Today, this "bacterial infection" (guess??) is back but just on one
side. Any idea what this is? <very unlikely bacterial> Should I
worry? Thanks Larry P.S. I've attached a picture, but I don't
think it will help.....I need to capture just the correct angle, or else
the fin looks fine. <if the fish will eat try medicated food for a
spell but do keep a close eye in case QT is necessary. Angels are so
prone to full blown parasite infections that we cannot take this
lightly. Anthony> Re: Koran Angel Thanks for the quick
response. I will start feeding medicated food. This fin problem has been
ongoing for more than two months. I should have told you that my Purple
Tang has never shown any signs of this (but his pectoral fins are yellow
not clear)... <no matter... every fish has indeed different
immunities/sensitivities to various pathogens by species and per
individual... just like people> however my Coris Gaimard did show the
exact same fin clouding (only pectoral fin, not on any other fin that I
can detect) with it disappearing in a day or two. I don't think it comes
back as often as the Angel, maybe because the Coris swims so fast it's
harder to see? I will check the water parameters as well as I don't test
this tank as closely as my 125g. However the water changes are up to
date so I don't expect any surprises. The temperature is very constant
at 82 degrees, <excellent> it may dip to 81 when I open the window
on cool nights. <surprising the open window only affords a one
degree dip> I have a Mag 12 return in sump on the 90g... something I
would not due in the future as it put too much heat in the water.
Thanks Larry <not too much heat if the temp is steady. 82F is quite
fine. Best regards my friend, Anthony> Re: Koran Angel
Thanks Anthony, your reassurance with temperature is removing some of my
frustration with the what I would call high temperature (82). My 125 is
constant at 77-78 so my 90 at 82 I thought was high. <higher temps
(82-86) are not very dangerous in tanks with good aeration and if the
temp is steadily high. However, a jump from 78-82 is just plain
dangerous if that is occurring. Anything over 3F between day and night
is scary> I will see if a few cooler nights will lower the temp more
than 1 degree, but so far it's been so hot, the air conditioning has
been running for the last week or so again. BTW my 125 within hours it
seems of putting the air on drops its' PH (or it refuses to rise)
<heehee... yep, the subject of much debate every summer. Pressurization
in the house and lingering CO2> I just read the PH in my 125 reef and
it is 7.9 at this time of day. With the air off and the windows open it
would be at 8.3 by now. Pursing a window open doesn't seem to help, I
need a full blown air exchange for almost a day before it returns to
normal. <wow... bummer> Oh yes I did have a question, ...My Coris
Gaimard disappears for three to four days about once per 6 weeks or so.
<yep... I've seen him in Vegas playing Poker. You should see him, he's
quite good> This is the second time this has happened...he is just
gone. Just when I think he is dead, out he comes and is swimming with
the other fish...and looking at me for food. Is this normal for them to
(I assume) bury them selves and reappear a few days later? <Yep...
very wrasse-like> Thanks Larry <best regards, Anthony>
Koran Angel question Hi, we have a Koran angel fish that is about
2 years old and is trying to reach its intermediate color phase of life,
However, he’s not doing so well, his face has turned a whitish color, he
has a slightly high breathing rate (approx 108/min), and some whitish
stripes are near his tail fin and streak inwards on his body. These
whitish streaks on his body and face are not bumps or leaches. Also,
he’s not eating and tends to just stay in his rocky cove where he
sleeps. Any ideas what might be the problem and/or cure? <Mmm,
sounds much like the beginnings of HLLE, likely triggered by poor water
quality and/or nutrition.> Thanks, we have really grown fond of our
Koran Angel and want to see him obtain his adult colors someday.
<Please read through the HLLE FAQs here:
http://www.wetwebmedia.com/hllefaqs.htm and re the species on our
site:
http://www.wetwebmedia.com/marine/fishes/angels/pomacanthus/koran.htm
and the related FAQs (in blue, at top) and check your water quality for
nutrient accumulation aspects, spiff up your skimmer, consider
augmenting your fish's diet with vitamins, iodide. Bob Fenner>
Koran In Trauma! Hi guys I have a question on my 2 inch Koran
angel that is not eating and has a hole in his body that has a red ring
around it any information on this disease would be greatly appreciated
thanks! <Well, hard to say without a good picture, but it almost
sounds like you are dealing with some form of parasite, or even an
infection brought about by some trauma (injury, bite, etc). In the
absence of other obvious disease symptoms, I'd remove this fish to a
separate aquarium for observation and/or treatment. You should keep
water quality in the treatment tank absolutely pristine, to prevent
potential greater infection. If there does indeed to be some form of
parasite, I'd use some freshwater dips, followed by a broad spectrum
antibiotic, such as Maracyn, to prevent even greater infection during
the healing process...Do refer to the disease FAQs on the
wetwebmedia.com site, and confirm what it may be that you're dealing
with here! Let me know if we can be of any further help! Good luck!
Scott F> Re: Koran Angel Problem Hi, Thanks for your
reply! I checked out that website and it was really interesting. It
didn't say much about disease though, do you have any idea to what his
problem might be or what I can do to help. The people at the petstore
suggested he might have a throat tumor but I can't find anything about
fish getting them online so I wanted to see if it was possible that it
was anything treatable. Could this behavior be associated with the color
changing? To answer your questions: Yes it is a tank full of live rock,
I have two millennium 3000 filters one on each side, I have a protein
skimmer and a power head. The salinity is at 1.022, temp is at 81F. The
tank mates are: a small Chromis, two chalk Basslets, a small target
goby, two cleaner shrimp, a green abalone, a pencil urchin. a maroon
clown, and a bulb anemone. Thanks! ~Neosha~ <Please read here:
http://www.wetwebmedia.com/MarInd3of6.htm skip on down to the
marine disease area, and read starting from the top articles, FAQs. Bob
Fenner>
Re: Koran Angel Problem Hi Mr. Fenner, I
checked out the FAQ and I did gain a lot of valuable information from it
but I did not find anyone with a similar situation to mine. All of the
other fish that wouldn't eat had problems but my fish has no white
spots, no cloudy eyes, no gill flaring, nothing I saw on the site. So
what I really want to know is...have you heard of any problem that might
make a fish not be able to physically eat even though the have the
appetite for it? <Yes... there are several cases like this noted on
WWM> Do you recommend a freshwater dip for the fish? <No, won't
help here.> Many thanks, Neosha PS I just noticed you are the
author of "The Conscientious Marine Aquarist" which I just bought a few
weeks ago, well done, great book! <Thank you, Bob Fenner>
Help! blotchy faced Koran Angelfish Hi, I am hoping you can give
me some advice. I have a Koran Angelfish that looks like he is
experiencing early male pattern baldness. His color was solid all over
when I bought him. He picked up ich about 2 weeks after I brought him
home, but freshwater baths and the addition of a scarlet cleaner shrimp
did the trick. A few weeks later after he was all cleared up the color
on his face area started to look blotchy and turned white in a very
evenly matched pattern on his face. He was about 3 1/2 inches when I
first bought him and now he's almost double that so he's starting to go
through the change of life to adulthood coloration. I have had him for
over 6 months now. Water is great, he's happy and eats a balanced
diet. He's the master of his own tank (no one is terrorizing him and
stressing him out). Any advice as to what this is and what I can do to
even out his skin color again? Thanks for your expertise. Jen
<Very often, well often enough, the blotchiness you mention in this
species is indication of the beginning of HLLE: Please see here:
http://www.wetwebmedia.com/hllefaqs.htm I would look into
augmenting this fish's diet with iodide and vitamins A and D... there
are products sold pre-made for this in the pet-fish interest. Bob
Fenner> Koran Angel with white patches G'day guys.
<Good day Stu> I have a 3-4 inch Koran Angelfish in my reef tank. He
is a lovely looking fish and is a big eater. In the last few weeks I
have noticed that he has been getting white faded patches on his body
and fins. Not everywhere but just small circular patches. Can you advise
what this is as I don't think is has to do with the maturity process.
Also how can rid it off the fish if necessary. Any medication or
treatment in a reef tank?? Also are UV sterilizers a worth while
purchase as they do get rid of the pathogens and algae. But doesn't the
algae help sustain the environment and help feed the corals, fish and
inverts and therefore use of the nitrates. Stu <The "blanching"
you describe might be indicative of sliding water quality or some other
sort of stress (even simply psychological), otherwise maybe just the
fish reacting to your presence. Unless you see other symptoms of
infectious or parasitic disease I would not treat or move this fish.
UV's can help in promoting overall health by improving water quality and
reducing populations of water-borne microbes. They will not eliminate
the possibility or absolutely cure biological disease. Bob Fenner>
Sick Koran Angel (4/28/04) My Koran Angel has been with me for
many years. <How many? IS it just getting old?> Recently he has gone off
eating and his eyes are very puffy. They look like they have been blown
up. One of the eyes seems to have a raised bubble on it. I do not have a
hospital tank. Any suggestions? <This sounds like a bacterial infection.
If you want to save this fish, you need to set up a hospital tank. This
can be a Rubbermaid container with a sponge filter and a heater. I'd
suggest treating with an antibiotic such as Maracyn. Read the FAQs on
Popeye & bacterial infections. Hope this helps. Steve Allen.>
Sick Koran Angel 10/11/05 Wet Web Crew: We have a 55 gallon
tank with a Koran Angel and a Puffer fish in it. The Koran is about 3-4"
long and the puffer is about 3-4" long. They get along very well. The
tank has some live rock in it and also some decorative rock. About
two days ago we noticed that both fish had white spots all over their
fins and bodies. We thought it was Ich and treated them for it. It did
clear up, but when we read about the symptoms of Ich, it did not sound
like that is what they actually had. The Koran Angel now has cloudy
eyes, a swollen pink mouth and white blotches over his body. He has been
stressed over the last few days due to tank changes to treat the ich a
fresh water dip for only a few seconds, and a lack of appetite. The
tank he was in when we thought he had ich was dirty due to overfeeding,
something I did not know could be so harmful and the water had a bit of
a high nitrate level, but not too bad. We did a water change, cleaned
all the equipment and put the puffer and angel back in. Today, one
day after being returned to the tank, the angel developed these
symptoms. I had noticed him swimming on his side sometimes over the last
few weeks, but he was eating and acting healthy. Do you have any idea
what this disease could be and what would cure it? I'm afraid that if we
don't know something for sure soon, the angel won't make it. We would
appreciate any help. Thank you. By the way, we view your site a lot
and find it very helpful. <David and Heather, I cringe when I read
queries such as yours. A picture comes into my mind of very poor diet,
poor water parameters, and poor maintenance which includes weekly 10%
water changes and add to the fact that your 55 is too small for keeping
these types of fish as they do grow quite large. I'm seeing a rise in
ammonia due to excess waste and a biofiltering system too small to
recover. All this leads to severe stress of the animals in question
making them highly susceptible to disease. I can suggest that both
fish should be separated for the time being either in separate
Quarantine tanks or using a tank divider if QT's are not available. Then
you need to get a product such as SeaCure Copper Treatment along with a
FasTest Copper test kit and maintain a dose of 0.015-0.020 for a minimum
of 21 days. The test kit is necessary especially if you are going to
treat in the main tank. Hopefully you can save the fish. You didn't
mention what you initially treated the fish with and for how long. In
the future do more research on the fish you are buying so you know its
requirements/needs. James (Salty Dog)> Re: Sick Koran Angel
10/12/05 Actually, our biofiltering system is larger than what we
need for the tank and when these fish outgrow the tank they are in we
are transferring them to an 80 gallon tank. <Good news. The Koran
alone would require a 70 gallon tank when it is full grown and this is
borderline, preferably a six foot long tank.> I appreciate your
advice and assure that we take good care of our tanks. <Great> We
have three of them. something just went wrong in this one. We did a
25-30% water change before putting the fish back in the tank and the
nitrate level was never high. We checked it very regularly. At this
time, they are both small and the tank seems big enough for the two of
them. <Agreed, now it is but won't be for long.> Can you tell me
if this is true? Do they need a bigger tank now, even though the puffer
and angel are not full grown? <A rule of thumb I use is one cubic
(not length) inch of fish per five gallons.> It sounds like you are
not positive we can save the fish - which would break my heart. <I'm
always on the positive side. Problem is if treatment is delayed the fish
only gets worse and then to the point where the copper treatment even
adds further stress.> The puffer is lethargic this morning and I
don't know if he was sleeping or whether he is not developing symptoms
as well - can the disease be spread? <Most definitely. Do you employ
a quarantine tank to put new arrivals in? Read here.
http://www.wetwebmedia.com/QuarMarFishes.htm> I really am sorry
about all this. Our other two tanks are fine. <Great> One is a
reef tank and we have lost nothing from that tank in months. We did
introduce a Petco baby tank <baby tank or tang?> into the tank
with the puffer and angel - it died in two days. Could this possibly
have been the start of these diseases. <Yes, tanks/tangs are ich magnets
and should definitely be quarantined.> If I treat the angel with
copper, does it have a better chance of living? I have read that angel
fish are extremely sensitive to copper treatments. <Correct, that is
why it is a must to use a copper test kit to insure copper is at a safe
and effective level.> I'm sorry that the tank was not better cared
for, <You don't have to be sorry to me, but it sure sounds like you
are a caring person that will do whatever it takes to keep your stock
healthy. Please read more on the WWM. FAQ's allow you to learn from
other peoples mistakes. Again, research a fish you are interested in,
especially care level, compatibility and size of tank required.
www.liveaquaria.com has a chart for every fish indicating the
above.> but I assure you that we did test the water and because of
the filtering system on the tank, everything always seemed fine.
However, our test kit cannot test for calcium and some of the more
advanced water test items. <Wouldn't be too concerned with calcium
in a fish only tank, although too low a level can cause the ph to drop
somewhat. Do test for dKH, 8-12dkh is recommended.> I honestly
thought I was doing the right thing and would hate to lose these fish
over my lack of knowledge. <All the knowledge you need can be had
for free on the WWM.> Any additional advice you can provide would be
greatly appreciated. Thank you very much. I know I asked a lot of
questions in this e-mail and hope you will be kind enough to answer
them. <We are here to help. Most if not all of the questions you ask
can easily be found on the Wet Web by just typing in the keyword.>
The angel does seem a bit better today and I got both fish to eat some
Krill last night. Their diet is now more varied than it was, and I hope
it is not too late. Losing these fish would break my heart because it
would be my own fault for lack of knowledge. <Again, Heather,
definitely read about what you are getting. Korans are not that
difficult to care for. They do require clean water, low nitrates, 10%
weekly water changes and a good and varied diet. Read again here.
http://www.wetwebmedia.com/marine/fishes/angels/ - Good luck, James
(Salty Dog)> Koran Angel health concern 8/1/05 Hi,
<Hello there> I have been referring to this fantabulous site for
various kinds of information and I have never failed to find the same,
this is the first time 'am asking an question. <Welcome, you are a
stranger here but once> The other day I bought myself a Koran
Angel...the Angel is doing great and it is quite active and eats quite
well but I have noticed some white patches on its body and it seems to
rub itself surfaces. Ich is ruled out because it does not look like ich
as in there are not dots or spots on the body just a general
discolouration i.e. white patches. Any help will help. Regards
Rajeev Menon <This medium sized species of angelfish is prone to
such behavior, displays when new or stressed... I would not panic, treat
the water with chemicals. Bob Fenner>
Koran Angel
I've done a thorough search and can't find any article about the
symptoms similar to that of my Koran Angelfish. Everyone talks about
white spots or fuzzy cotton spots. What about red bumps? My angel is
in a 55 gal and was doing fine the first week in his new home. He then
developed red bumps, irregular in shape, looking similar to a mole, on
both sides of his body directly behind his fins. One grew quite large
and the other side of his body looked as if it was going to clear
up. No such luck. While the bump on one side isn't as big, it is
larger in diameter, flat, and almost a little bloody looking. The only
other fish in the tank is my little "Nemo" Clown, yellow Tang, and 2
green Chromis. I have moved him to a quarantine tank of 10 gallons. I
should mention that his appetite is hearty as ever. I really hope you
can help with this. I am quite attached to this particular fish as he
is very sweet and tame to the point of being friendly when my hand goes
in the tank and even lets me touch him. Help!! Thanking you in advance
for your consideration, Bobbi <Bobbi, without seeing it, I'm thinking
these spots are ulcers. I would start be treating with saltwater
Maracyn. Water quality is of the utmost importance for these
fish. Weekly water changes of 10% is highly recommended. I would also
add an iodine supplement to the aquarium. James (Salty Dog)>
Koran Angel eye problem, needing to read WWM I have searched your
site for days and haven't found a solid answer to my question. I have
Koran angel, when bought he had a cloudy eye. I was told it was like a
black eye and it would get better, which it started to. After 2 weeks it
was slowly getting better. Today I checked and both eyes are cloudy.
They are not bulging, just cloudy. The other fish in the tank are fine,
and my water quality is great........What is going on??? Please give me
some advice <Trouble... please read on WWM re Angelfish disease...
you will find many references to your situation, proposed and actual
cures. Bob Fenner> Cloudy crystal ball, Pomacanthus semicirculatus
eyes My Koran Angel's eye's are both cloudy. He/she is in a
quarantine tank and have been adding Maracyn 2, for 3 days now. How long
until I can see some results?? <Perhaps weeks, maybe never. Bob
Fenner> Koran Angel, Bacterial? 8/4/06
Good Morning Everyone, <Dave> I have a Juvenile Koran Angel that
I have had for about 6 weeks. He was in apparent perfect health when I
bought him. I quarantined him for 30 days, and everything looked good
so I introduced him to the main tank, a 110 gal FOWLR. Within 24 hours,
his left eye had developed a cloudy and torn appearance. I decided that
he must have scraped on something (but I could be wrong so I'm including
this little tidbit), left him alone, and it healed on it's own.
<Good... did likely rub on a/the net, perhaps something else> After
a few days in the DT, I noticed that his body had lightened
somewhat. His behavior seemed completely normal otherwise, eating,
grazing, etc, and the eye was healing, so again, I just
waited. Eventually, a white sore appeared near his dorsal fin.
<Might be related to the same incident> This spot seemed more like a
lesion, and was coupled by the rapid, severe fraying of his right
pectoral fin, so I double checked my water parameters and found out that
I had been using the wrong reagent to test and my nitrates were sky
high... near 50-60. <Yikes... too high> I suspect that a heavy
cleaning of the sand bed a week earlier disturbed algae that had grown
on the top, causing it to die and DOCs to spike. <Too likely>
A series of (3) 30% water changes over the next 4 days brought
nitrates down to 0.75. <Wow!> I have observed no physical
aggression towards this fish on behalf of his tankmates. 48 hours
after the water changes were completed (last Thursday), I noticed that
this large white lesion appeared behind the frayed right pectoral fin,
along with the tissue joint between the pectoral fin and body becoming
discolored as well. After many repeated attempts to get the little
bugger to hold still long enough for my slow camera to get a picture, I
got one of the spot. It's attached, sorry it's not a better quality
photo. I am worried that this is a bacterial infection spreading to the
body from fin rot of the right fin. <Maybe> I have isolated
this fish into a QT and have been medicating the QT with both Maracyn
and Maracyn-II since Sunday evening. I have not seen any progression of
the problem, although I have seen no improvement either.
<Takes time... weeks> I am feeding the angel nightly with Ocean
Nutrition Angel Formula, giving him 30 minutes to eat and siphoning the
waste/leftovers from the bottom, topping off, and re-medicating. Again,
even in the QT, his behavior is completely normal. My questions are: Do
you believe I have diagnosed this correctly? <Good guesses> Am I
performing what you believe to be the correct treatment? <Mmm,
maybe... I might have left the fish in the main display, might replace
it there, "for what it's worth"> How long with these products until
I can expect to see a visual result? <Weeks> I can treat for up
to 10 days according to the directions... Should I be doing any other
treatments? <I would not> Can any of these other
treatments be done concurrent to the Maracyn/Maracyn-II treatments, or
should I stop these treatments? <I would run out their
course and then stop> If you've provided alternate suggestions, how
long before I can expect to see a visual result? Thanks
in advance, Dave <Same time frame. Again... likely physical
trauma and poor environment are at principal cause here... Improving the
second, avoiding the first is about what this fish needs. Bob Fenner>
Koran Angel/Health - 05/22/2006 Hello Bob, <James with you
today, Bob is probably charging his tanks in HI as we speak.> <<Not
quite yet today. RMF>> I always read the post and questions people
have on WetWeb. quite helpful. <It is.> I bought a Koran Angel
yesterday and he looked well, ate well and I have been watching him at
LFS for a week now. I got him home and he seemed to adjust well, in
with my Porc. puffer. this morning I woke and found him to have a
blotchy appearance. he is eating well. I have no ammonia, nitrites or
nitrates ( very low 5ppm). my pH is 8.2 sg. 1.01 , temp 79 he is eating
well and swimming around even bullying my puffer a little. Is this a
mood thing with them? Very normal behavior.> Also sometimes
swims kinda leaning a bit/ should I be concerned?? <A normal trait.>
I am! <Lori, sounds to me like a water quality issue to me. Do read
here.
http://www.wetwebmedia.com/marine/fishes/angels/pomacanthus/koran.htm
thanks, <Lori, in future queries, do cap all "i"s and beginnings of
sentences. Saves us much time if we do not have to edit/correct. James
(Salty Dog)> Lori
Re: Koran Angel/Health -
05/22/2006 Thank you James for answering my email so quickly.
Sorry about the "I" . I did notice on my mail that I said my Sg. was
1.01. It's 1.019-1.020. I have a protein skimmer going, a hang-on power
filter and a canisters filter that is for 150 gallon tank, Mine is 75
gallons. If I'm testing for ammonia, nitrates, nitrites and they are not
really detectable then what would be wrong with my water quality? Is
there something else I should be testing in a fish only system?
<Excess organics in the water is one thing to look at. With the use of
a canister filter and a hang-on power filter, you need to ensure that
the pads/sponges be changed or cleaned on a weekly basis. Not doing so
creates nutrient traps which lead to increased organics in the water,
something the Koran Angel does not like. You do not mention the model
of skimmer you are using. A good, efficient skimmer is quite necessary
here.> I did notice yesterday after I wrote to you that as the day
progressed his blotchy appearance seemed to have gotten less noticeable.
I did look on the WetWeb info about Koran it makes me nervous because it
says blotchy can lead to bacterial and or parasite infection. I also
have a UV sterilizer going in that tank. Sorry to pester you but I am
looking for any other advice you can offer. <A good healthy diet is
very important to keep this angel thriving. Ocean Nutrition has a
frozen food called Angel Formula which is excellent for this family
of fish. It does contain the items these fish forage on in the
wild. Do read the FAQ's on feeding. http://www.wetwebmedia.com/marine/fishes/angels/feeding.htm>
Thanks in advance. <You're welcome. James (Salty Dog)> Lori
Re: Koran Angel/Health 5/23/06 Hello James, <Hello
Lori> Well I have a Seaclone 150 skimmer, the canister is new it's a
Cascade 1200 and I rinse the sponge in the power filter in the water
that I siphoned out while doing water change. Is this correct? <Is
fine.> I have that Angel Formula and believe it or not he likes flake
food better. Loves flake food so I soak it in Zoe. <Good, keep offering
the angel formula. Try soaking that in Zoe, might trigger a
response.> Back to the filter. Can you ruin the good bacteria in the
sponge by touching it with your hands? <No. When replying, always
reply with original message(s). We get many queries here and I cannot
remember who is who with what.> Thanks <You're welcome. James
(Salty Dog)> Lori
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