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FAQs about Jawfishes, Family Opistognathidae Compatibility Related Articles: Jawfishes,
Related FAQs: Jawfishes 1,
Jawfishes 2,
Jawfish Identification,
Jawfish Behavior,
Jawfish Selection, Jawfish Systems,
Jawfish Feeding,
Jawfish Disease, Jawfish Reproduction,
Opistognathids get along with all larger sessile and motile
invertebrates that get along with them.
Acanthocauli plus on an expired Fungiid
skeleton... |

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Re:
Yellowhead Jawfish... Horse Conch comp.
Thank you for the answers! I have to apologize again for asking so
many questions, I did find some more info and realized that some of them
probably shouldn't have been asked. It is just so overwhelming when you
have so many different questions and you are getting different
impressions from different sources.
<Focus... one thing... at a time>
I will definitely look into reading those books. I still haven't bought
the Jawfish, but he is still there so I have hope! I bought 20 lbs of
live sand and some live rock, and I'm letting everything cycle.
Hopefully all will be well before he is sold. I am also preparing myself
to part with one of the crabs so I can free up some more tank space for
him.
There is one question that you didn't answer in my last email, and it
was a pretty big concern of mine. Will the horse conch try to eat the
Jawfish when he (the conch) gets to be a few inches long?
<Shouldn't, no. Pleuroloca gigantea eats mainly other snails and
bivalves>
I have visions of the conch positioning himself over the jawfish's hole
and sticking his body down there to eat him... the way he does with the
snails he eats. I was able to get a better picture of the conch to send
to you; he wasn't being very photogenic last time. I'll attach a picture
of one of my marginellas, too. Thank you again for your time and
knowledge! :)
<Welcome! BobF> |
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Jawfish/Systems/Compatibility
2/15/08
Hey Guys,
<Hi Jason>
Love your site.
<Thanks>
I recently purchased my second Blue Spot Jawfish for my 24G mini-reef (more on
the first BSJ, which died, in a bit). The BSJ shares the tank with a very
peaceful Chalk Bass. The fish get along fine and there is no problem with food
competition when I target feed with a baster. There is an abundance of
soft coral (zoo's, recordia <Ricordea>) and two nice hammer corals in the tank.
Pretty deep sand bed (7" in front) and a pretty uncluttered layout, with an open
area in the front of the tank. The tank is well covered to prevent jumping. In
my opinion, it is about as good a Jawfish environment as one can create in a
tank this size.
<Sounds good.>
Before I ask my question, I need to jump back about 8 months. Last summer, I
bought a very healthy BSJ and watched it waste away in the same tank, finally
dying after a long 6 weeks. Although I did not know at the time, there seems to
be a decent amount of anecdotal
evidence<http://www.wetwebmedia.com/jawfishsysfaqs.htm>
suggesting that the BSJ is a "cool" water fish, better suited to 72-76F temps
than the typical 78-81F tropical tank (the temp of my tank the last time
around). Indeed, the slow deterioration of my last BSJ seems consistent with the
"wasting" one might see with an overheating fish.
<Could very well have been caused by shipping/handling stress.>
In preparation of buying the new BSJ, I lowered my tank temp to about 76F.
Neither the corals nor the chalk bass seemed to mind, and the BSJ has acclimated
extremely well since being added last week. At any rate, here is my question:
how much lower do you think I can bring my temperature down before I start to
risk the Chalk Bass and the very typical assortment of softies and hammers I
have in the tank? My main concern is that temps get a little harder for me to
control in the summer months despite having air conditioning. If I could get the
tank down to about 74F by spring, I'd feel extremely good about the BSJ's
chances...but I don't want to jeapordize <jeopardize> the rest of the life in
the tank. How low can I go?
<Between 72-78 would be acceptable for all your animals.>
Thanks,
<You're welcome. James (Salty Dog)>
Jason
Jawfish/Goby and pistol
shrimp combo 01/09/2008
Hey guys and gals how are things?
<<Hello, Andrew here>>
I have a couple questions this morning. I've been doing a lot of research
regarding Jawfish, and also have a love for the shrimp/goby relationship. The
FAQ's have provided me great knowledge regarding these animals.<<Great to hear>>
But, I still have a couple questions. I've been playing with marine aquariums
for over five years now, and have set up three of four tanks due to moving and
travel. Unfortunately, until now I had no idea that the rockwork is better
placed on the glass rather than the substrate. <<A lesson well learned>>
My tank has been sitting for about 2 months with no fish, it's 40 gallons with
50ish lbs of live rock. (1/2 of which is either touching bottom glass or very
close to it from digging liverock into substrate)
I also have Goniopora, Button polyps, green star polyps, and mushrooms. I have
created a 6"-7" DSB about 9" square away from the liverock for the Jawfish to
build his den, sand bed is about 2" elsewhere. Now for the questions.
With this setup will a Jawfish build his den in the desired location?
<<Stands a good chance, nothing is certain though>>
If not will it put my rock structure in danger of shifting and damaging my tank?
<<If the fish digs under rock which is only supported by sand, then yes>>
If so, would the pistol shrimp/ goby combo be a better fit?
<<The pistol will dig just the same as the Jawfish>>
Lastly, if both the Jawfish and pistol/goby are o.k. in my conditions would it
be at all possible for me to have both?
<<Yes, given good tank size and big enough deep sand, should be fine>>
Thanks again for everything you provide, any help as always is greatly
appreciated.
Steve
<<Thanks for the questions, A Nixon>>
Re: Jawfish/Goby and pistol
shrimp combo 01/09/2008
Thanks for the quick response Andrew, greatly appreciated.
<<No problem>>
If I dig under the liverock so it will be in direct contact with the bottom of
the tank will the concern about the Jawfish and goby/pistol be laid to rest?
<<Yes, that will be better>>
thanks again,
Steve
<<Thanks, A Nixon>>
Follow-up Re: Crab Removal,
and now Jawfish compatibility issues – 12/17/07
Good morning Lynn,
<Good afternoon, David!>
So, I removed my crab infested rock.
<Excellent.>
I wanted to get the crab out 'manually' without waiting for the crab trap to
work or not work, as my quarantine tank wouldn't have beneficial lighting for
the small corals beginning to grow. It took about 20 minutes with the rock out
of water... but I finally got the big crab out with a screw driver and didn't
come across any of the smaller crabs.
<Heeee! Probably hiding from the giant silver “claw”!>
At this point, the other crabs don't appear to be at a size where they could do
damage.
<Yep, probably okay for now, but do keep an eye on.>
The big crab is now in my 200g tank and I'm willing to bet he'll fall prey to
the Harlequin Tuskfish before the Snowflake Eel gets to him. I also relocated my
huge banded serpent star, who lately has been hiding in a small cave arched ~ I
recall reading Green Brittles hiding in caves and arching and then collapsing
onto unsuspecting fish
<Yes, indeed, and it gives me the creeps. I must have watched too many monster
movies as a kid!>
... so figured it'd be best to move him too.
<Good thinking.>
My reef tank is coming together now and my soft coral polyps seem to be doing
well after 3 weeks. Just wanted a suggestion. I do plan to add several more
corals to my 90g tank w/30 gallon sump.
Current inhabitants:
2 x yellow headed Jawfish <Love these fish!>
1 fairy wrasse
1 Kole tang
1 small blue yellow-tailed damsel
1 Coral Banded Shrimp
and a few small hermits.
I do have two False Percula Clowns and a large Yellow Watchman Goby in a 24g
bowfront nano tank. I moved them out to allow the Jawfish plenty of time to get
settled as the last time I introduced a single yellow headed Jawfish to my tank,
the outcome reminded me of the Texas Chainsaw Massacre.
<Ah yes, I remember reading about that. I believe the suspects included one of
the Clowns and a Dottyback.>
With new liverock, the addition of a wavebox, and the aquascaping entirely
redone, the Clowns would definitely be the new kids on the block.
<Good plan.>
The Jawfish have been nicely settled sharing two side by side burrows for the
past 2 months.
<Awesome.>
So, my questions, now that you have my novel of background information:
<Heeee.. "It was the best of times, it was the worst of times..."! Seriously,
it’s better to give us too much info rather than too little!>
Do you think the two False Percula Clowns would now fit in nicely with this
mix... likely leaving the Jawfish alone?
<With the steps you’ve wisely taken, I think they’ll do fine. It’s possible,
though, that the larger Clown could try to bully the two Jawfish if she decides
she likes their part of the tank. Hopefully, it won’t be a problem, but if she
does get overly aggressive, take her/the pair back out. At least Clowns are
easier to catch than Jawfish!>
Do you think adding the large Yellow Watchman Goby would work with the Jawfish
burrowed at the far back corner of the tank? Once that goby's in the tank, to
get him out would mean dismantling all of the liverock.
<Yep, that wouldn’t be pretty. Watchman gobies don't usually go after other
species, so given the fact that the Jawfish are at the far end of the tank, you
should be okay.>
I realize that additional corals would in a sense, increase the bio load on the
tank.
<Yes.>
Am I appropriately stocked? Overstocked assuming the Clownfish move in?
<How large are they?>
Assuming the Yellow Watchman also moves in?
<You’d be maxed out on fish, for sure. I think you might be one tang, or
possibly a clown and a half, over the limit. Excellent husbandry and observation
are going to be key. Do keep an eye on your water parameters, and general
behavior/health of the fish. If they’re crowded, you’ll notice behavior
problems/nipping/aggression, and/or disease/various maladies showing up.>
I certainly won't be adding additional fish... but will likely add some more
small hermits.
<A couple would likely be okay, but frankly I wouldn’t add anything else for a
while. Let the tank settle in with this bioload and see how it goes.>
David Brynlund
<Take care -Lynn>
Jawfish tankmates -11/18/07
Hello all,
<Steve>
I have had some unfortunate circumstances with my tank recently.
(previous question to you is attached below)
The one positive circumstance that this bad situation has offered me, is to
start fresh and create the "perfect" tank environment for the fish that I want.
I have been reading a lot on your website, and one other about Jawfish. Which, I
must say I love already and cannot wait to get a couple of the little guys.
Anyway, my questions are regarding appropriate tankmates. I've come to realize
that choosing appropriate mates for a Jawfish is a must, and I would just like
some specifics. After I introduce the Jawfish first, I would like to add a
blackcap Basslet, as well as two Banggai cardinals, and two Ocellaris.
Throughout readings I have discovered that bangaii's and Ocellaris should be
quite suitable. But, I have noticed that blackcap's may not be. What I've done
is created a cave for the Basslet (due to their need to be covered from
lighting) which is located a considerable distance from my deeper sandbed (about
5") where I hope the Jawfishes will burrow. My question is will this situation
provide an appropriate environment for my new fishies. Thanks again for all your
help, and providing everyone with such great information.
Steve
<The Basslet and all else here should get along fine... if this system is large
enough... Sixty or more gallons let's say. Bob Fenner>
Jawfish killing help
11/6/07
Hi I have a question about my Jawfish to see if you might could help me. My
current tank inhabitants are: a small maroon clownfish, yellow goby, cardinal
Banggai, royal Gramma and pearly Jawfish,
<Mmm, these last two...>
and a yellow tang in my 75 gal tank which have all gotten along fine. I also
have two cleaner shrimp and a peppermint shrimp. A few weeks ago my dad noticed
my Jawfish swimming upside down and very funny in the current which he never
did. My dad took him out of the tank and the Jawfish was very easy to catch and
put him in our quarantine tank. The Jawfish acted just fine in the quarantine
tank and ate like normal. Yesterday we decided to put my Jawfish back into the
tank and acclimated him. He was fine yesterday, although he was very hard to
catch. My dad left the light on acclimating him this time because in one of our
fish books it said to leave the light on for the Jawfish for him to be able to
find a home. We normally do not do this but we did this time. This morning I
found my cleaner shrimp eating on part of my Jawfish which was not in one piece.
My question is do you have any idea what could have killed him?
<A best guess... the Gramma loreto... these two hail from overlapping habitats,
but don't generally get along. Bob Fenner>
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Jawfish Burrows… Suitable
Tankmates 11/2/07
Message for Mich
<David>
Thanks!
<Welcome!>
Yes, these little critters are my wife's favorites as well and they rank up
there on my list too.
<Love'em>
I lowered the overflow in my 90 to incorporate a wavebox. I have a good 4inches
of open air from water level to top of the tank with egg crating above. As well
I offset two pieces of eggcrating to minimize the space that a critter could fit
through topping off my overflow. I think I have taken care of any accidental
suicides with these guys.
<Does sound good.>
I'm trying to figure out if I want to pull out my large serpent star... Brown
with black bands. It does move ever so slow when using its arms on food items.
<Serpent stars are generally less predatory brittle stars.>
The red brittle star I had on the other hand became quite proficient at catching
shrimp quickly ~ but he seems to have disappeared over the past 18months.
<Sorry.>
I have a small blue yellow-tailed damsel in the tank and a coral banded shrimp.
I'm wondering if I should reintroduce my two false percula clowns in a month or
so... Let the jaws get settled comfortably first.
<I would give the Jawfish time to get comfortable.>
I did have a bad experience the last time I tried to introduce a Jawfish but I
think I went about it all the wrong way. (First of all, the clowns had been in
the tank for years and the rockwork hadn't been readjusted in at least 18months.
The Jawfish was the last one in the tank sharing quarters with: large yellow
watchman goby, two clowns, regal tang, and a Royal Dottyback. Within 24hrs the
larger clown and Royal Dottyback were ripping the poor critter apart.)
<Not good.>
Other than that, I wish to add a Royal Gramma.
<Give the Jawfish time. The Gramma can be a little territorial.>
I might raise a small Regal Tang in the tank to be moved to my 200gallon FOWLR
after a year or so when he grows. Any suggestions/favorites of yours that I
could also add in that wouldn't upset the Jawfish and are reef safe?
<There are many lovely fish that fall into this category. Fairy wrasses are
another one of my favorites. Perhaps a Firefish would make a nice addition.
There are lots of neat Gobies. I'm fond of the genus Stonogobiops and their
symbiotic pistol shrimp, of course how can you not love the genus Gobiosoma?
Cardinalfish can make interesting shoals. Many choices, you need to do some
research and see what you like.>
Banggai Cardinals perhaps?
<An excellent choice.>
I'm all about slightly under stocking and stress-free life.
<Is a recipe for success. Good luck to you my friend, Mich>
David Brynlund
Re: Jawfish Burrows... Suitable
Tankmates 11/6/07
<Hi David,>
Thanks for the response...
<Welcome!>
Pistol Shrimp, really??
<So long as there is some space between all...>
I used to have one with my Yellow Watchman Goby...
<Cool!>
But it kept nibbling my starfish down to stubby discs.
<Un-cool!>
I caught him and traded him at one of the stores.
<Good.>
However, after introducing three new cured pieces of live rock... I do
hear a familiar clicking sound from the tank. Kind of like someone's
gently tapping a penny against the glass from time to time. I've spent
some time looking, but can't seem to locate anything. Sound like a
pistol shrimp to you?
<Yup.>
It's been years since I had mine....
<Are neat creatures!>
David Brynlund
<Cheers, Mich> |
Jawfish compatibility– 09/17/07
I need some help with my stocking list. I have two reef tanks side by side,
a 125 and a 30 cube. The 125 currently houses a yellow mimic tang, a canary
wrasse, a firefish, a royal Gramma, a pair of false perculas, 4 Chromis, a
cleaner shrimp and a fire shrimp. The 30 houses a single pearly Jawfish. I was
considering adding a flame angel to the 125, but am at a loss for the 30. I love
the jawfish's personality. He has become quite bold in leaving his burrow,
especially at feeding time. I don't want to do anything to alter that. I thought
that a pair of Banggai cardinals might make good roomies for the Jawfish, but
although the body types are quite varied, that leaves me with three somewhat
colorless fish. I really want something with a different body type that occupies
more of the upper part of the tank, has some color (maybe purple or red), and
will leave the Jawfish alone. I've always wanted a flame hawk but realize it
would likely pester the Jawfish.
I'd also like to stay away from what I already have in the other tank.
Some thoughts that I had included:
pipefish or seahorse (I have a very large fuge)
<Mmm, maybe... perhaps a species found in the same range as the aurifrons>
fairy wrasse
<Nah... need more room>
mystery wrasse
canary blenny
assessor
<These three are too inactive to suit me>
Hopefully there's something similar out there that would make a reasonable tank
mate.
Thanks,
Jeff
<I'd keep looking... no rush... BobF>
Stressed Jawfish Not Eating...Best Kept
On Their Own, I Say – 08/31/07
Hi I had written you earlier about a jawfish that I thought was dead
because I had a yellow watchman goby in the same tank.
<<Mmm, yes...not the best of tankmates for these rather shy and peaceful
fish (I’m assuming the species in question is Opistognathus aurifrons, the
Yellow Head Jawfish)>>
The yellow headed jawfish is still alive.
<<Ah! Guess I should read ahead [grin]. Okay, good...but for how long? Its
chances are best in a species specific system...or at least housed with
other smaller, not “too” active, and very peaceable species>>
They are both underneath the same rock right next two each other although
different holes I think.
<<Yes...is most likely>>
The goby moved to that rock when we put the jawfish in there.
<<The Goby views the Jawfish as a competitor for its food items>>
My question is; is there anything I need to do to get the jawfish to come
out of the rock.
<<Remove the Goby...or move the Jawfish to its own system>>
Occasionally I will see some sand move or him stick his head up to the top
of the sand. That is the only reason I know he is alive. I have never seen
him come up for food,
<<Though it won’t stray far, a happy and healthy Jawfish will extend
from/leave its burrow to feed>>
although for the past few days I've been mixing some garlic flavor and brine
shrimp in a turkey blaster and putting it right by his hole. Today, being
Thursday has made it a week since I got him. I know fish can sometimes hide
a week, but will he ever come out of the rock?
<<Maybe...maybe not... This situation is much like that when folks place
Nemateleotris species of Dartfishes (commonly called Firefish) in systems
with aggressive and/or boisterous fishes. Even if the Goby is not expressing
direct aggression towards the Jawfish, just its presence/proximity may keep
this shy fish from feeding properly. This along with induced stress will
spell disaster for the Jawfish. There can be exceptions, but unless this
fish adjusts/starts to feed actively soon...well...>>
I don't know what to do.
Thanks, LeAnne
<<I can only relate my opinions/experience, but in more than 30 years in the
hobby I don’t recall ever seeing these fish do well in the long-term when
kept with other large or boisterous fishes...especially other
“substrate-dwellers.” They can be pugnacious at times with their own kind,
but are usually intimidated very easily by other fishes. These are wonderful
little fishes with very interesting behaviors that can be fascinating to
observe especially when kept in groups, but is also a demanding species best
kept in a specialized system...in my opinion. Do please read here and among
the associated links at the top of the page
(http://www.wetwebmedia.com/jawfishe.htm). Regards, EricR>>
Assembling A Jawfish Community... –
06/11/07
I am going to expand my salt water tank system. I am presently running a
50 gallon tank which I plan to attach to a new 90 gallon tank that has a
sump and separate hang on refugium. Both tanks will have live rock and a
deep sand bed.
<Sounds interesting>
My 50 gallon tank presently has 2 Percula Clowns, 5 Clown Gobies, a Yellow
Watchman Goby, two Neon Gobies, 2 Peppermint and 1 Cleaner shrimp (and a few
soft corals, snails and hermit crabs)
<Quite a crowd of small, interesting fishes.>
I will be connecting the two tanks with a bridge which will allow fish and
water to move between tanks.
<Neat.>
I want to put in a deep sand bed (6") for jaw fish in the 50 gallon tank. I
have read that the material in the sand bed for jaw fish should be mixed
size and include some larger items like shells.
<Correct.>
I will be putting the rock on the floor of the aquarium in both tanks to
prevent any instability due to digging. Some people have noted that they use
PVC pipe for the jaw fish. I
am thinking of doing this as well and creating an area in the tank with
several 1 inch wide PVC pipes surrounded by an area of courser material. Do
jaw fish prefer to live in close proximity or further away from each other?
<Some species are not very social, such as the Blue Spotted Jawfish
(Opistognathus rosenblatti). Other species, such as the Yellowhead Jawfish
(Opistognathus aurifrons), my personal favorite- do well in small groups.>
(I am thinking of 2-3 yellow headed jaw fish which would be added at the
same time)
<Good call...>
I presently have a sand bed in the 50 gallon tank that is mixed size
material--which is collecting too much detritus--so I was planning to clean
the sand and sort out the larger material such as crushed shells. This
larger material along with sand would be added to the area for the Jawfish.
(presuming I can get them to go to this area) I would like to put finer
material in the other areas of the tank to prevent the buildup of detritus
in these areas.
<Okay..>
The 90 gallon tank and the refugium would both have 3" sand beds of fine
sand. I am currently growing spaghetti algae and pods in a separate 10
gallon tank to use in the refugium once it is set up.
<Not a bad idea.>
I will be moving some of the pods to both tanks as well as keeping them in
the refugium. The Jawfish would be the first fish added to the new system,
but I would also like to add a dragonet (maybe two --a Green and a Spotted)
and an Orange-spotted Blenny once the tanks are better established.
<I think that the Dragonets might be a bit of a problem- the Jawfish might
harass them...Use caution. The Orange-spotted Blenny is a real hit-or-miss
fish, in my experience. Some do great and acclimate well, others perish
quickly in quarantine. Select carefully.>
Since everyone in the tank I have get along now (except one neon who chases
the other--even though the fish store said two would be fine....) are there
likely to be any
problems with this fish combination?
<As above.>
Maureen Baker Wilkinson
<Best of luck with this system. Hope to see some pics one day! Regards,
Scott F.>
Yellowheaded Jawfish Compatibility 3/31/07
Afternoon,
<Still trying to awaken in HI...>
I'm considering how I can please my wife and add a Yellowheaded Jawfish (that
she loves) to either of my two tanks.
90g soon to be reef tank:
100lbs liverock, 4" sandbed
2 False Perculas
1 Yellow Watchman Goby (about 4inches)
1 small yellow-tailed blue damsel (had to be moved out of 200g tank because of
Royal Dottyback bullying)
1 Coral Banded Shrimp
1 Banded Serpent Star
Assortment of snails and hermits
200g:
220lbs liverock, 4" sandbed
1 Snowflake Moray
1 Yellow Tang
1 Foxface
1 Royal Dottyback
1 Banded Serpent Star
3 Sand stars
** note I'm moving one sand star back into the 90gallon once I modify my 90g
I had an issue when trying to add a Yellowheaded Jawfish once before. Either
Dottyback and larger clown killed the Jawfish as they were both tearing him up
the morning after I introduced him... or else he died due to stress and they
were attacking his body. Anyhow, once I renovate my 90gallon reef tank... I
would be adding the Jawfish first and allowing him to settle for a week or two
before adding any other fish.
<Sounds good, workable>
I figure the Jawfish would definitely have to be in the 90g... but am wondering
if the Watchman Goby would be an issue as they both are bottom dwellers. Is a
standard 4ft x 18" bottom enough room for both bottom dwellers?
<Likely so...>
If not, is the watchman goby suitable for the 200g with the Snowflake Eel?
<Mmm, I would not tempt the Echidna here... usually are non-fish eaters...
however... Bob Fenner>
David Brynlund
Clown Goby loss... and Jawfish/Sexy Shrimp comp. 12/14/06
Hello again,
<Hi there Tom! Mich with you again.>
I have to quick questions for you.
<Alrighty>
1. Are Pearly Jawfish compatible with Sexy Shrimp. The have quite big mouths and
I was wondering if the temptation may be too great for them to bear.
<I don't think the jawfish will go after the shrimp looking for a snack, but the
jawfish will defend its' burrow. If the shrimp tries door to door sales, it
could have an unpleasant encounter at the jawfish residence.>
2. A while back I bought a Clown Goby. He seemed to transition fine and he was
nice and active ( he was the first fish I added to my nano tank after the tank
had cycled for about 7 weeks). All had gone fine for about the first 6 weeks,
but then two days ago he seemed to not want to come out, so he stayed hidden the
whole day. I didn't get too worried because I thought he might just need some
"alone time". Then yesterday, he wouldn't stop swimming around. He stayed out
the whole day, eating and doing what fish do. As the day went on he seemed to
get a little pail <What did he do with the little pail? Hehehe! Maybe you meant
pale!>. By night he still seemed as fishy as ever but his color had really
faded. This morning I went over to look to see how he was doing, and to my
dismay, he was lying on the tank floor dead! I have no idea what caused this.
The levels in his tank are all where they should be. He doesn't have and other
tank mates ( I had made a the nano tank just for him). The only other thing I
can think to tell you is that when his color faded, only the green faded ( sorry
I should have told you he was a green clown goby earlier). The red dots and
stripes were still as bright as they usually were. If you have any insights they
would be greatly appreciated.
<I'm sorry for your loss. There is nothing that leads me to suspect anything
particular contributed to his death. Obviously there are many possibilities.>
My apologies, this dragged on longer than I thought it would.
<No worries.>
Thanks for all the great work you do.
<A collective labor of love. -Mich>
Tom
Re: Clown Goby loss... and Jawfish/Sexy Shrimp comp. 12/14/06
Hi Mich,
<Hi Tom!>
I was not planning on getting a soliciting shrimp :),
<Heee!>
but since it could happen do you think it would be better just to avoid Sexy
Shrimp?
<It would eliminate potential problems.>
Do you think the Clown Goby may have just died of natural causes?
<Hopefully yes, but it's impossible to say.>
If you think he didn't are there any other thing I should check?
<Like no one wiped the outside of the tank down with bleach or accidentally
spike the tank while spiking the eggnog?>
Maybe he was caught under his little pail :)?
<Could have been!>
Sorry about that last time, yes I did mean pale.
<It's OK, just having some fun with it!>
Thanks again.
<You're quite welcome. -Mich>
Tom
Re: Clown Goby loss... and Jawfish/Sexy Shrimp comp. 12/14/06
Hello again Mich,
<Hi there Tom!>
Alrighty, I will steer clear of the sexy shrimp for now.
<A good idea I think.>
If it was from a bleach wipe down, what's the longest you think it would take
from the time of the wipe to the time of his death (just so I can do some
investigating)?
<Hmm, not sure, would depend on many factor but I would say more than a few
minutes to less than a couple of days, big range I know.>
The tank does get wiped down but I do not use cleaners. My thought is maybe
someone else used the cloth with cleaners and didn't rinse the cloth.
<Would recommend a dedicated cloth or disposable paper products.>
Do you think that could be a cause?
<It's possible, but so are many other things.>
I'll be sure to put up a sign beside the tank that informs people that the fish
doesn't drink to eliminate the other idea you had ;).
<Do a google search on reef tanks and vodka, you will be amused!>
Thanks again.
<My pleasure. -Mich>
Tom
Serpent Star and Jawfish compatibility - 05/22/2006
Hello, I've perused the site for a definitive answer, but have only come up
with 1) brittle stars and Jawfish can be problems, since both are benthic, but
2) most brittle stars, except the green brittle star are safe with fish.
<Some useful generalizations>
I have 2 tanks, the smaller is a 46G reef tank with several corals (Acropora,
Goniopora, Frogspawn, green mushroom, a couple of polyp colonies, Xenia), 2
peppermint shrimp (wurdemanni) named Bubba and Gump,
<Good names>
2 Mithrax
crabs (pinchy & sandy),
<Keep your eye/s on these...>
assorted snails and blue leg hermits, 2 green-blue chromis, and 1 black banded
serpent star named Twinkle (Ophioderma longicaudum, I think). Names are courtesy
of the kids.
Since setting up the tank, I have wanted to add a Jawfish. I have a 4" fine
sandbed and am planning to raise it with courser materials. But I just read of
the concerns about keeping with my star fish.
<Mmm...>
Please verify if it is inappropriate to add Jawfish with the star fish?
<Your system is more than "full up" livestock wise... if it were much larger...
by a few times, I would not hesitate to add an opistognathid>
Another question: when I got the tank there was a large number of small white
feather dusters (maybe Bispira brunnea) on the rock. They proliferated all over,
on the glass, some of the corals, even in the overflow until....I got the
peppermint shrimp. The shrimp were acquired to tackle a growing Aiptasia
infestation.
<... don't always stick to assigned tasks...>
They tackled that problem with due speed. But when done with the Aiptasia, I
started noticing a decline, then nearly total disappearance of my feather duster
population! Is it known that these shrimp eat feather dusters? All of them, or
just this particular species? Any other explanation?
<"They come and they go"... could be predation at play here, or senescence
alone, a lack of food stuffs... Bob Fenner>
Re: Serpent Star and Jawfish compatibility 5/23/06
Dear Bob,
Thank you for your help and the enormous resource you provide!
<Glad to share>
Surprised that the tank seems "full", it actually feels pretty "empty" since the
organisms described all fairly small, and the appearance is of a large amount of
live rock (about 60 lbs) but only scattered life, mostly the still modest sized
corals.
<Mmm, there is much to say here... Most likely your Goniopora will die soon
(don't have a crystal ball, but this is an easy speculation)... Will "challenge"
this 46 system, occupants... would likely "take" the Jaw with it... How to begin
again here... Please read:
http://wetwebmedia.com/poritidselfaqs.htm
I am/was really simply trying to "stall you"... but am less reticent re telling
you why at this point>
The inverts mostly hide during the day at least. And there are only 2 fish each
about 1.5 in. But if you think it's stocked, I'll
lay off and maybe save the Jawfish for a planned 29G refugium I want to add to
my other tank, a 120G FOWLR full of showy aggressive species.
<Ahh!>
As to the feather duster disappearance, although I never witnessed it, they were
definitely eaten, and quickly.
<Likely the Mithrax/Mithraculus here>
Even their tubes are mostly gone, wiped clean off every nook and crevice of the
rock. If I had thought them a pest (some sites have indicated small feather
dusters can reach pest status) they were certainly cleaned up. Since they were
thriving and always had their crowns out, right up until the shrimp had finished
the Aiptasia, Bubba and Gump are the "creatures of interest." Could the mithrax
crabs also be suspects?
<Yes, most likely candidates>
They are original inhabitants and have been perfect citizens since I bought the
tank contents about 5 months ago from a hobbyist getting out.
It would seem strange that they would suddenly turn on the feather dusters, just
when the shrimp arrived. I'm just surprised since I haven't read anywhere about
shrimp eating worms. But as they say, the creatures don't read books, or
websites. Oh well.
<Please read here:
http://wetwebmedia.com/mithraxfaqs.htm>
No need to reply unless you wish, thanks for your info on the Jawfish/star fish
pairing!
Michael
<Mmm, do look into trading out the Flowerpot, or at least keep a close eye on
it... And do investigate before buying livestock. Bob Fenner>
Jawfish 10/16/05
Hi I was wondering what would be the best setup for some Jawfish and what are some compatible tankmates in a 40 gallon aquarium.
<Read here Steve. http://www.wetwebmedia.com/jawfishe.htm.
Good tankmates could be percula clownfish, the smaller gobies, Dottybacks etc. James (Salty Dog)>
Jawfish (Opistognathus sp.) and other stocking questions…
Hey Crew,
<Hello Aaron.>
I would like to know if I could house a Yellowhead Jawfish (Opistognathus aurifrons) and what I would have to do to keep it
healthy.
<Please read here: http://www.wetwebmedia.com/jawfishe.htm , as well as the
FAQs at the top of the linked page.>
I have a 49G bowfront FOWLR aquarium. It currently has 50 pounds of live rock and a 4-inch crushed coral sandbed.
<I usually prefer to see 6 inches in a Jawfish tanks.>
I have an Excalibur skimmer, an Emperor 400 power filter, 2 powerheads, all
tests (Ph, ammonia, nitrate, etc.) are good, and the specific gravity is 1.022. I only have 30W of lighting, but I am planning on upgrading
that. I am also planning on getting a UV sterilizer.
<Not that I am against UV sterilizes (and some are) but make sure you are getting it for the right reasons (research) as many folks buy them and then realize later it was a waste of money, they aren’t necessary in all set-ups.>
I have one false percula clown, one blue damsel, and one banded shrimp. I am planning on
getting a Banggai cardinal
<Tank-raised if possible please.>
a firefish goby,
<This fish will inhabit the same lower area as the Jawfish, you may want to reconsider this choice.>
another false percula clown, a bluegreen chromis, a tiger tail sea cucumber
<May not have adequate food in a 50 gallon tank.>
some bumblebee snails
<I would prefer to use Cerith or Nassarius, bumble bees (in my opinion) have a larger, negative, effect on microfauna populations.>
a blood red fire shrimp, and maybe a yellow Hawaiian tang or a bicolor angel.
<Both of these choices would not be inappropriate. The tang will grow far to large and the bi-color is just not a hardy fish. However the pygmy angel idea may be a good one, just choose another angel within
Centropyge genus.>
Do you think that all of these fish will work in my tank?
<Not the tang or angel.>
If not, please tell me which ones or if there are too many. Also if there are any other neat fish (or other creature) that you could
suggest for my tank (for the record, I am fairly new to the hobby), I would really appreciate it. I would appreciate a couple suggestions for
good reference books as well.
<The contentious Marine Aquarist by Robert Fenner and Reef Invertebrates by Anthony Calfo and Robert Fenner are two of my favorite ones.>
<<Editor's note: While many aquarists are certainly contentious,
Bob's book is actually "The Conscientious Aquarist". A spoof of
the book, "The Contentious Aquarist" might be a fun read.
Marina>>
Thanks, Aaron
<No problem, and be sure to search the WetWebMedia site many of the questions you have are explained in much more detail within the articles as well as different opinions/perspectives in the FAQ’s. Adam J.>
Jawfish Compatibility - 05/08/05
Greetings WWM folk, hope all is well!
Ok, so here goes. I recently set up a 75 gal saltwater tank with about 25
lbs live rock and about a 4 inch sand bed. The first inhabitants were a
pair of tank-bred percula's that I kept in a 12 gallon Eclipse. They're
doing great. Then I added about 9 green Chromis. They are a very
inexpensive fish and look great schooling. So far everyone is happy. Well
the whole point of the tank was to house pearly Jawfish, maybe 4 or 5.
<Jawfish can be very territorial, I don't think you'll get away with this
many in this size tank. In fact, I think the problem you describe below is
attributable to aggression between the two Jawfish you have now.>
So far I have 2 living there but they've had complete opposite reactions to
their surroundings.
<As already stated, more likely reactions to each other.>
They both took to burrowing, however one can usually be seen spitting sand
out of his hole whereas the other never comes out at all. I can see the shy
one hiding in his hole behind his little "door" but it's been a week and I
don't think he has eaten. I understand you can't keep Jawfish with fast
swimmers but I've searched high and low, on this and many other sites, and
can't find any ideal tankmates. Any ideas?
<Tank mates should be of a "peaceful" nature, which in my book, clowns are
not. Have you had a read here yet? http://www.wetwebmedia.com/jawfaqs.htm>
Pudge
<Regards, Eric R.>
Dwarf lionfish questions 7/28/05
I have a well-established 46 gallon tank. Currently I have 2 Percula
Clowns, 1 Chocolate Chip starfish and a Coral Banded Shrimp (approx. 2 inches
long). < Sounds like a barren tank, and mostly a FOWLR. > I am interested in
getting a Dwarf Lionfish but am concerned about its compatibility. < Well I
think you should be okay. I've seen a few of them in tanks with coral banded
shrimp and clownfish. I don't think I would buy the biggest dwarf lion and keep
it with baby clownfish, but in general I think this sounds fine. > How large
does a Dwarf Lionfish grow to be and would it harm or eat any of my current
fish? < Grow to about 5 inches, and if well fed with a variety of frozen foods
it should be worry free. > Thanks
Mark
< Blundell > <<Sooner or later he'll suck'em up
brah. RMF>> |
FAQ daily question that was asked 8/7/05
Minimum tank size for a dwarf lionfish 8/6/05
I bought a 24 Gal Nano Cube that I was going to have for Saltwater. The only
thing I want in there is a fuzzy dwarf lion fish. < That is a very small
tank. But if you plan to have one and only one fish, you may be okay. > I
have been getting mixed opinions on if the tank is to small and I've decided
to ask the experts! < Well that is a tough call. Personally I wouldn't do
it, but I think it can easily be done. > Would this size tank be fine for
him/her? I lied. I also want a Yellowhead Jawfish. Would they be fine
together? < Fine together, and probably okay in that size tank. Too bad you
already made the purchase, as a 55 gal would be much better. >
This was posted on the faq, in my limited understanding, wouldn't' a Jawfish
either stay in its burrow in this tank or be food for the lion.
<Yes>
I'm just
picturing that small a tank, that as soon as Jawfish pokes its head out, it
would be gone.
Plus if you make a sandbed adequately deep enough for that jaw, you wouldn't
have enough room for the lion to swim about?
<Hee! We are in agreement... totally. Bob Fenner>
Blundell is far more knowledgeable than I, but thought this response odd.
<I as well>
|
Re: faq daily question that was asked 08/08/2005
You both may certainly be correct. I wouldn't think a dwarf lion would take
out a Jawfish. But I guess it may.
<Will... definitely, in time. Dang pteroines should be called "suck-em-ups"
commonly>
Although I do agree that this size tank is just way too small. The fish may
live and grow, but that just can't be a happy life for them.
Blundell
<Mmm, okay. BobF>
|
Opistognathus whitehurstii
Hi Bob,
First of all, thanks for writing such a fabulous book. I got my copy last
week and I've truly found it to be a phenomenal source of information.
My question regards the Dusky Jawfish. My LFS has a large one (6 inches +).
How safe are these guys? Their mouths seem huge. Baensch talks of this genus
being safe with most inverts. Are cleaner shrimp at risk? How about small fish?
They seem very shy and timid.
Any info would be greatly appreciated.
Thanks,
Jason
>>
Wow, a six incher at a retailers? That's a big one! Opistognathus whitehurstii, though not as colorful as their "pearly" congeners in the Atlantic (O. aurifrons) are one of my fave "character" additions to reef and peaceful fish only systems... and yes, they will eat/inhale most anything that will fit into their cavernous mouths... but only the smallest cleaner shrimps will be in trouble. I wouldn't worry about keeping them together.
Bob Fenner
Jawfish replacement?
Hello, again!
I wrote not too long ago with a question about moving our anemone (it didn't
move, instead we've adapted!). I've included part of my prior message below,
listing our tank's inhabitants.
<Ah, good>
I also mentioned that we were on Jawfish #3 and #4 in 1 week. One never
reappeared after making a burrow under some of the rock. Well, the second guy
looked great and ate brine shrimp very well. He was active burrowing, but just
as we thought he'd made a great home, he'd move on to another place. He seemed
fine for almost 2 weeks. Then 2 days ago, he disappeared completely for 15
hours. It looked like he had suffered a cave-in (he was starting to burrow
horizontally from his vertical burrow in about a 7" deep mostly aragonite - is
that the one between fine sand and Puka rubble?
<Comes in many grades, products>
we have all 3 - substrate). I
went on a search and rescue mission, as one of the other Jawfish previously
seemed to have buried itself to death...I blew a turkey baster in the area to
clear a channel and sort of reached down and pulled up with my fingers and later
that day he reappeared looking distressed. He then ate OK yesterday and now has
disappeared again. This time, I think it's terminal (I haven't tried any
searches, but he typically was always visible).
I really loved watching this fish (so did my 6-year-old daughter), but I'm
scared to try again with another - I don't want any more deaths on my
conscience! These have been our first fish losses...Should we try again with
Jawfish that have been held by the dealer longer? (These came from FFE) and,
perhaps, are hardier, if that's the problem. Or is our substrate insufficient?
It's plenty deep and mixed...
<There's more afoot here... the Opistognathus aurifrons aren't doing well (to put it mildly) this last year or two... would wait till the water (in the Caribbean) got a little cooler (November on) before trying them again>
If we should give up on the Jawfish (sigh), can you recommend other fish that
would be good additions to our current tank? Anything else that has a
personality or is active like the Jawfish?
<Take a look through the materials stored on the site: Home Page , in particular the Fishwatcher's guide section to the tropical west Atlantic... for some ideas of what's available, desirable>
Thanks again for your help. We're so appreciative of having you as a resource!
Brooke Cannon >>
<Be chatting. Bob Fenner>
Jawfish Hopes, Losses, Resolution
Hi, I have your book, The Conscientious Marine Aquarist, which has provided
wonderful information and great educational as well as entertaining reading
while waiting for my 55 gallon marine tank to complete its cycle.
<A delightful description of all that I could/hope that my writing efforts might accomplish>
There is a bulletin board online that I also frequent for information and advice and
many of the moderators on the board routinely recommend your book to newcomers.
<Ah, no higher praise, please>
I have kept freshwater tanks for about 10 years, but this is my
first marine tank. Have always wanted to try them. Now for my problem.
My thirteen year old son is my partner in this endeavor and as we have both
been doing a lot of reading and studying before and during the set up of
our tank, he fell in love with the Jawfish, or what he has read about them.
So in anticipation of eventually owning a Jawfish or two for our tank, we
set up with a deep sand bed (it's about 5 inches I'd say) with regular
aragonite on the bottom and 30 lbs of live sand on the top. I also have
around 40 lbs of live rock. Anyway, to make a long story short, the tank
finished cycling, I ordered a clean up crew online, which arrived fine.
This crew was recommended for tanks with live rock and live sand and
consisted of a black brittle star, a black banded serpent star, 2 inpatiens
cucumbers, 1 abalone, 2 Mithrax crabs, 10 burrowing Cerith snails, and 1
red Fromia star fish. As a surprise for my son, I also ordered 2 pearly
Yellowhead Jawfish. Well, one of those was DOA (nearly) and the other
seemed perfectly fine and happy. We even had the pleasure of watching him
build his little home on the night of his arrival. His little face was so
adorable! Then alas, I woke this morning hoping to see him out and about
while the lights were off, and things were quiet, but he was being eaten by
the banded serpent star! Now I was pretty mad about this. But what I need
to know is first, did I jump the gun and get Jawfish too soon in my tank,
and second, was the Jawfish most likely dead BEFORE the starfish decided to
make him a meal, or do these critters hunt and kill other fish?
<First, sorry to hear of your losses... this is a very traumatic experience... given your study and preparation... Yes, it would have been better to wait on the fish... and yes, I would have excluded Brittle Stars (and the Abalone) from clean-up crew choices here (the former are indeed opportunistic fish eaters/predators, and the latter rarely lives in tropical systems...). But the real issue/cause of trouble here are likely the fish (Opistognathus aurifrons)... the ones out of the places of collection in the north of the tropical West Atlantic have been notably poor in quality the last few years... Those from further south (to mention Brazil) and tank-raised/reared specimens are far hardier... Please do wait a couple of weeks, perhaps remove the Brittle Star (well may call for extracting the LR, digging through the sand/aragonite...) and try again with better specimens... Oh, and please add to your reading/studying (even enjoyment) sources in the pet-fish realm, the site: www.WetWebMedia.com>
May seem a stupid question, but I want to know before I spend any more time and money.
<No such thing as a stupid question asked in earnest>
I don't have a reef set-up, and don't intend to have any anemones, corals,
or such, just fish, live rock, and inverts such as would be included in a
cleanup crew. But is this the wrong crew for my tank? Sorry for such a
long email, I know you are a busy man.
<Every one has the same amount of time...>
But I also know you are a very experienced and wise man, and would love to hear your input. Thanks so
much in advance. Melody Lewis, McDonough, Georgia
<Thank you for writing. You are welcome to forward my comments to the supplier of your livestock and request credit/replacement for your Jawfish, the Brittle Star and Abalone. Be seeing you. Bob
Fenner>
Question about a possible pair of Pearly Jawfish
Hi Bob,
<Actually, you have reached Steven Pro. Anthony Calfo and I are helping Bob answer some of the daily questions.>
You don't know me but I'm one of your biggest fans. Your book, The
Conscientious Marine Aquarist, was the first in my marine library and
allowed me to get off to a good start in this hobby. I've ready your
page on Jawfish at www.wetwebmedia.com as well - thanks for that
information! I have a bit of a puzzle and I figure you're the man to
help me decide what is the best thing to do for the animals involved.
I have a 5 month old 120g reef tank set up that is doing quite well with
many stony corals and the following fish (placed in the tank in this
order):
1 royal Gramma about 3"
2 Ocellaris clownfish about 2"
1 yellow tang about 3.5"
1 sixline wrasse about 1"
(coming soon hopefully - 1 flame angel)
I have many pictures of my tank on a web site here if you would like to
see the tank:
www.sjwilson.net/reef
My local fish store (a very good one) has what appear to be a pair of
pearly Jawfish. These fish are about 3.5" and have been in the store a
little over a month. They are assumed to be a pair because they have
been sharing the same burrow since they have been there.
<Probably a good assumption>
They are in a 20g long tank by themselves.
I would love to put them in my reef tank (4" sand bed) but I fear my
Gramma would not tolerate them. She is the undisputed boss of the tank
right now.
<I would not be too worried about the Gramma as the Jawfish want to stake out a territory in the sand and the
Gramma should have claimed an area around a nice hole in the rock.>
At least until the tang grows up :-)
<You are right about the yellow tang.>
Anyway, I also fear that the sixline wrasse could cause problems. He's very small and easy going now but I've heard they can troublesome.
<Not to worry, fairly dissimilar fish.>
I do have a 20g tall tank that I've been using as a quarantine tank and
I've been considering setting it up for the Jawfish pair. I would put
in a lot of sand, possibly up to 6" and keep them as the only fish in
this tank hoping they might breed.
<No matter where they end up, please do quarantine them.>
I'd love to hear your opinion on my plan for the 20g tank as well as if
you think it is possible that these Jawfish are indeed a pair.
<If you indeed wish to attempt to breed them, the 20 is your best bet.>
Susan Wilson
Blue spotted Jawfish
Hello there. I have been looking into getting a blue spotted jaw for my 55g
reef, but I still have a few questions. First off, it looks like brittle stars
are not good tank mates for them, as well as the serpent stars. I currently have
a large brown brittle star, and was wondering if I should remove it before the
introduction of the jaw.
<yes...they are generally territorial towards other benthic animals>
Also, it is about 10" across,
<nice...almost eatin' size...hehe>
so do you have any recommendations to animals that could substitute for it's
"detritivore" capabilities and stirring the sand?
<a smaller goatfish species would be interesting and quite effective.
Sturdier starfish too like the sand burrowing star (Archaster typicus) AKA
"White Linckia" from Indonesia>
Also, once I get some various rock sizes, and the jaw makes his home, is he
likely to keep digging all over the place and making new burrows, or will he
mainly stay in the one he built?
<many homes in time>
I ask because I have some LPS on my sandbed, that I don't want to have buried.
Thanks.
<just be sure to keep species that can shed sand (no open brains but Fungiids
for example are good. Best regards, Anthony>
Blue Spot Jawfish Blues
Hi Bob,
<Anthony Calfo in the house... rapping to a funky beat... while mix-master Bob gets new gold caps on his front teeth (one tooth with a fish stamp cut out of the gold to let the enamel shine through>
I was hoping that you could give me some advice before I invest in a rather expensive fish. My tank is 30 gallons and includes one of each:
Halichoeres chrysus - golden wrasse
Paracanthurus hepatus - blue tang
True Percula Clownfish
(All of these fish are very small - 2 inches or smaller)
Pistol Shrimp - Synalpheus species
Cleaner Shrimp - Lysmata amboinensis
I am seriously considering buying a Bluespot Jawfish and want to know what I need to change (if anything) in my tank in order to
accommodate this fish's needs.
<I seriously recommend that you don't by this fish for such unnatural company. Such
Jawfish are best in species tanks with very deep (6-12") sand of an appropriate grain>
I want to make sure that this Jawfish is comfortable and healthy.
<species tank only my friend>
My plan is to add 1 or 2 watchman gobies eventually. Are they OK with the Jawfish?
<Yowsa!!! a surefire way to stress the Jawfish if not elicit an all out war among like competitive benthic creatures! Way bad, dude>
Any chance that the Bluespot Jawfish would pair up with my pistol shrimp the way that they do with shrimp and watchman gobies?
<what are you smoking? Heehee... seriously... ahhh, no. Commensals almost ALWAYS have to be collected together. At least the species has to be natural, and
more often they literally have to be collected together. Not gonna work unless you find a pistol from the Sea of Cortez... good luck>
Once again, thank you for all your great words of advice.
<and thank you for putting up with my humor as well. Anthony>
The Odd Couple?
Odd problem (or maybe not):
<Odd is good for me!>
I've had a yellow-headed Jawfish in my 80G tank for over a month now. The
aragonite sand is about 5" deep. I had laid out a slab of LR that has a
nice notch in it a little more than an inch wide . The Jawfish made this the
back of his burrow and has lived happily there since. Judging by the sand piles
around it, he has excavated extensively.
<There's no place like home!>
I added a purple Firefish 2 days ago & it vanished. There are lots of hiding
places in the tank. I couldn't find it with a flashlight and there was no way it
could jump tank. Today I found the Firefish swimming normally a few inches above
the Jawfish. It suddenly darted down past the Jawfish & vanished into the
hole. It's been down there since & I assume it has decided to be the
jawfish's roommate. (Perhaps this is temporary.) I see no obvious signs that the
Jawfish is bothered by this.
<Interesting...!>
I am a little concerned though. Do you think that this is OK or will it be
stressful for the Jawfish? I worry that the Firefish is sitting back there
chewing on his tail. Should I intercede & evict the Firefish? Thanks, Steve.
<Well, Steve, unless you're seeing the Jawfish in obvious distress, I
wouldn't worry about it too much. I think that if you intercede, you may cause
more of a problem than you think that there is! Just enjoy the unusual
behaviour...Only intercede if there is a serious problem. Enjoy! Regards, Scott
F>
Mixing Jawfish? 3/24/03
I would be grateful for an opinion on Jawfish compatibility:
<easy one... they are scary territorial>
Can more than one Blue-Spotted Jawfish get along in and 80G tank?
<probably... seek females (smaller head/jaw, buccal cavity)>
How about one Blue-Spotted and one Yellow-Headed?
<not recommended... but a very tight cover on the tank for all is... they are
serious jumpers>
More than one Yellow-Headed?
<perhaps yes... 2... not more than 3 conspecifics. All need very deep
substrates too. Some say 12" ideally. Most all say 6" minimum>
What about Dusky Jawfish--can they be kept more than one to a tank?
<indeed, not. Quite aggressive to each other.>
Thanks!
<best of luck... do try to purchase a pair/trio from the same tank/dealer for
better chance of compatibility. Anthony>
Gobies and Jawfish
>Hey Guys,
>>And gals. Marina here.
>Is it alright to have a Blue Spotted Jawfish and a Amblygobius
phalaena Goby
>>Do you mean "Amblygobius"? Check this link for
information--> http://www.wetwebmedia.com/amblygobius.htm
http://www.wetwebmedia.com/amblygobiusfaqs.htm
>in a 135g together? There will also be a Purple Tang, Ocellaris Clown, Flame
Hawk, Blue Hippo and possibly another Tang. Also, can gobies of different
species be kept together in a system this size (Amblygobius
Phalaena and Mahidolia mystacina)?
>>To the best of my own knowledge, care should be taken with animals that
occupy the same niche, or have very close taxonomy. I would exercise
care, and not try to mix similar species.
Look here for a bit of information on the shrimp gobies (which I think would do
alright with the Jawfish or the A. phalaena)
http://www.wetwebmedia.com/shrimpgobies.htm
>Last questions, are Copper banded Butterflies truly reef safe?
>>Generally, yes, though there are always stories of some that may get a
bit nippy with some types of corals. Keep them well-fed and I would
expect few problems.
>And I have read and heard that they will eat Aiptasia Anemones, is that
true, and would they eat an Anemone like a Curlicue or a Bubble Tip Rose
Anemone?
>>I've heard the same as well, it's not an "always" kind of
thing. Also, to the best of my knowledge curly-cue's are an Aiptasia,
I've never heard of a Copperband getting nippy with the larger anemones
(especially if it's being hosted by clowns).
>Thanks for your time, Nick Shushkewitch
>>You're welcome, Marina.
Jawfish Compatibility Issues (12/27/2003)
I've read many questions and comments about Jawfish being territorial, but
is it possible to house 3 in a 90 gallon? <probably not> I just added 2
and there are very interesting little creatures. They were just added today so
no territories are established yet. <Best to stick with only two. You need to
QT any new livestock which means it would be a month before you could put in the
third one. By then the two will be well-established in territory. Even if you
put all in at the same time, two could end up pairing up and attacking the
third.>
Second question! I recently switched from a Berlin ho to a Berlin classic to
save some precious cabinet space around my sump. The problem is that so far it
has removed nothing. My ho wasn't removing a lot, but I don't have a very heavy
load on it. When installing this in my sump the space was limited so in order to
make it work I had to form a curve with my tubing. I did say a curve not a sharp
bend. The water output seems to be fine but it's not removing anything. It's
powered by a Mag 5 by the way. Should I be concerned? <you want skimmate>
Should I try to switch back to a hang on in my case? What do you think of the
berlins? <They do not enjoy a good reputation from what I have read. I'd
suggest you post this problem on http://www.wetwebfotos.com/talk under equipment/dry goods
and seek advice from others who use this product. Hope this helps. Steve
Allen>
- Jawfish Foe -
Hi,
I have been lurking on your site for tips for two years since I set-up my 50 gal
Uniquarium reef system. <Glad you find the site useful.> All is going well
and I have followed your advice (and from The Conscientious Marine Aquarist")
and have had great success. Live rock is plentiful and productive, corals (a few
LPS and several soft corals) are happy and I have a stable crew of compatible
tank mates. All have been in together for at least 1 year.
1 pair Maroon Clowns
1 Orange-tail Blue Damsel
1 Bicolor Blenny
1 Yellow Watchman Goby
1- Banggai Cardinal
1- Flame Angel
1- Neon/Tailspot Wrasse
Plus snails, a few shrimp, many hermit crabs, 3 brittle stars and 2 Fromia
Stars.
Here is the question/problem...
When I started, it was my intention to have a Jawfish, so I built an area of
higher (5-6") sand bed on one half of the tank (3-4" overall) with
lots of rubble. I added a Yellow headed jaw first (along with the cardinal, blenny
and goby) and added the more aggressive and those needing more established tanks
later. Everything was fine for three months. Until I decided to add a Diadem
Dottyback. He fought with everyone and within a few days the Jawfish was gone
(presumably becoming the bulge in my red brittle star's disk.) Not knowing what
caused his demise, I tried to add another Jawfish (blue spot this time. An
expensive mistake.) He spent a few days finding the perfect spot, built a
wonderful tunnel, ate well and was very cool, capping his tunnel with a rock at
night. After about two weeks of apparent bliss, (for me and him) I
found him one morning in tatters trying to escape the surface of the tank. He
eventually died. I blamed the Dottyback and finally managed to get it out (the
soda bottle trap really works!!!).
Thinking the coast was clear, I added another blue spot (money to burn, I guess)
who settled in nicely in the same spot. After about two weeks of no apparent
fighting, I found him one morning in the same tattered condition. Dead!
<Bummer.> I have watched for hours at a time and have witnessed no
aggression against the Jawfish. It all happens during a single night with no
prior scuffles. <Hmm...>
Who could be the culprit that does not want a Jawfish in the community?
<Could be you have a snapping shrimp or even a mantis - that would be my
guess. Each of these burrow and would eventually encounter the Jawfish in it's
lair and if the crustacean were large enough, the Jawfish would likely lose.
Hard to say specifically because I would have initially blamed the Dottyback,
same as you did. More observation is warranted as well as perhaps some more
soda-bottle-trap action over night just to see what shows up.> I am
determined to house a Jawfish and am willing to find a new home for any fish
that refuses to live with it!
Any clues? <Not many... interesting problem, sorry I don't have a better
answer.>
Christopher
<Cheers, J -- >
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