FAQs about Pearly Jawfish
The Pearly or Yellow or Golden-headed Jawfish, Opistognathus aurifrons, Use in Marine Aquariums
by Bob Fenner,
Related FAQs: Jawfish
Behavior, Pearly Jawfish, &
Pearly Jawfish ID, Pearly Jawfish Compatibility, Pearly Jawfish Stocking/Selection,
Pearly Jawfish Systems, Pearly Jawfish Feeding, Pearly Jawfish Disease, Pearly Jawfish Reproduction, &
Jawfishes 1, Jawfishes 2, Jawfish Identification, Jawfish Compatibility, Jawfish Selection, Jawfish Systems, Jawfish Feeding, Jawfish Disease, Jawfish Reproduction,
Jawfish and Foxface; comp. 2/1/14
Hi Bob, I am curious as to whether a Foxface one spot and the yellow
headed Jawfish are compatible?
<Usually so; if there's enough room for both to be>
One of the Jawfish is so confident he travels over to the other side of
This morning I witnessed the Foxface nip the Jawfish! There is no damage
and it didn't freak the Jawfish out as surely the fish would run to its
<Yes; likely not an issue>
Your help is much appreciated.
<Welcome. Bob Fenner>
Re: Jawfish and foxface; O. aurifrons beh., incl. repro. f'
Thank-you I think there is enough room it's a 70gallon tank. I'm trying
to breed the Jawfish I have 6. They all live in 1 burrow, I got them a
week ago and waiting for them to make separated burrows. In the wild do
they live as colonies or separately?
<In colonies... B>
Re: Jawfish and Foxface 2/1/14
Thank-you for your help Bob.
Yellow headed Jawfish. Beh., repro. 2/3/14
Hi Bob, sorry to other you again! So it is normal for 6 Jawfish to live
together in the same burrow?
<Mmm, in captivity not unusual; have never seen but one per burrow in
the wild. To be (hopefully) accurate. They (O. aurifrons) are more
"clustered" in their location of burrows in the wild... and have been
"mated" commercially by housing in batches in large/r tanks in
captivity. Bob Fenner>
Re: Yellow headed Jawfish
Thank-you. They were introduced to the tank 2weeks ago. It's a 275litre
with loads of rock and a deep sand-bed. Is that big enough for 6?
<... only time can/will tell. Should be depending on surface area. Let's
just have you do the reading:
Should they start making their own burrows? I'm having to target feed the
burrow to get food to all of them!
Yellow Head Jawfish; symb. rel.s: comp. f'
Hello WWM crew,
I have read on the internet that: "... some Yellow Head Jawfish will
form symbiotic relationships with certain types of shrimp."
<Really? I've never observed this... in the wild or in captive systems>
Yet I seem unable to find any further information on the matter, just
the same general statement reposted.
I was wondering if anyone there could provide any further insight on
which species could pair off with YHJ?
Thanks, in advance.
<There may be some sort of commensals that find their way into their
burrows... bristleworms (Errantiate Polychaetes)... perhaps some
Crustaceans; but I don't know of any evidence for same. Bob Fenner>
Heavy breathing Jawfish; terr.
Hi, I need some help on 1 of my yellow headed Jawfish, I have 3
of them and there is a little aggression, the smaller one of
them has just started breathing heavily and has gone of food there is no
noticeable signs of disease and the other 2 are fine. Have you any Ideas
on what may have caused this? She was fine yesterday.
<... as you state. Read here:
and the linked files above. Bob Fenner>
"Fish remains" question; Jawfish beh.
Hey Wet Web Crew,
I have a strange question that I haven't been able to find a direct
answer to in the FAQs. About 2 weeks ago I got a pearly Jawfish. He
started burrowing immediately to endless entertainment. He was eating
in the store before I got him and was eating the second and third days
while in the tank. Then about day 4 he disappeared completely. Since I
don't see him coming out to eat, I'm fairly certain he's
dead by now.
<Possible, but they often are not visible for periods of a week or
more if you cannot watch the tank all the time and will hide very well
during cleaning actions. Might be still alive...>
I have my tank completely covered with a fiberglass screen kept in
place with Velcro fittings, so I'm really sure he didn't escape
(nor is he anywhere on the floor or behind the tank). I have since done
a water change
+ cleaning, and much to the unhappiness of my other tank inhabitants,
picked up every rock, even moved some of the sand layer, to figure out
if there was a skeletal remain somewhere...NOTHING!!!
OK, now for more details. I have a 55 gallon tank that is now 1 year
old with about 4 inches live sand, 50 lbs live rock, 1 rusty angelfish,
2 percula clownfish, 1 flame Firefish, 1 purple Firefish, 1 Bluegreen
chromis, 1 cleaner shrimp, 2 peppermint shrimp, 3 red-legged hermit
crabs, 3 blue-legged hermit crabs, 2 emerald crabs, half a dozen
snails, and 1 rock urchin. Nitrates 15, pH 8.3, salinity 1.023, and
temp ~80. All the
other fish look just fine. I never really saw any aggression towards
the Jawfish, except that he did give a wide mouth display when the
angel swam past once. I'm guessing this fish was just stressed from
the recent move and died without a specific agitator.
<Hard to tell, "vanishing" is not a very helpful symptom
for a diagnosis.>
My question is this: how much of a fish can be scavenged if it dies in
<A lot... in a well running reef. 3 inches of Jawfish can be
scavenged over night, even more... it mostly depends on how many
scavengers are available and how hungry they are.>
Is it weird that I haven't found any remains at all, or does this
<It does... not rare at all.>
Do you think a skeleton is just still in there somewhere and it will
turn up eventually?
<Possible, but not probable.>
I also have quite a few bristleworms; I only mention them because I
have seen a couple that are over 6 inches and wasn't sure if that
would make a difference (also don't know if it's time to
physically remove the really large ones or not). What do you think?
<Would be happily surprised and glad if the fish would turn up
again. Would not be so much surprised if you would never ever see a bit
of it again. Also see http://www.wetwebmedia.com/jawfishdisfaqs.htm
Jawfish System/Behavior 4/8/2009
About two weeks ago I purchased a Jawfish who made his burrow.
<One of my favorite fish, I have two myself>
After he was established in the tank and doing well I decided to add a
2nd Jawfish (a week later). The morning after adding the 2nd Jawfish I
could not find him/her.
<Very common with Jawfish.>
After 4 days I figured she had died and was buried under ground.
<Some will hide for days...>
Well when I went to feed the fish I noticed that the 2nd Jawfish was in
the same burrow as the original Jawfish.
He/She was very timid and only popped their head out of the burrow. It
didn't seem like she was eating anything.
What do you suggest I do about her not eating?
<Target feeding with a turkey baster works well - Mysis shrimp are
accepted quickly, then you can wean them onto pellets.>
Why do you think they are sharing the burrow?
<Normally for mating, but it is really anyone's guess.>
I know they share their burrow when they mate but I don't think
they would have mated in 4 days.
<Seems unlikely, but it is possible, Many "normal"
behaviors in the wild do not apply to tanks.>
Any information will help, Thank You!
<Keep trying to target feed, enjoy your new fish!>
Jawfish: System/Behavior/Compatibility 4/8/2009
Long-time reader, first time writer. I've got a 33 gallon Red Sea
Max reef tank that's been established for a little over a year. All
measurements, salinity, well within limits and I use activated carbon,
a protein skimmer, and Purigen for filtration. I've got the
- Percula Clownfish
- Mystery Wrasse
- Pygmy Angelfish (very small/young)
- Red-headed Jawfish (the name the LFS gave me)
(and a variety of soft and LPS corals)
<A bit crowded for a 33 gallon.>
The Jawfish is a recent, and very entertaining, addition to the
When I first added him, he hunkered down in a corner and stayed quiet.
After a few days, though, I came home, he'd made a burrow for
himself, and the next day he was eating frozen mysis, Formula 1
pellets, and Formula 2 pellets (didn't care for the frozen formula
2, oddly). That was about a week ago.
Since then he eats daily, his color has perked up, and he has stopped
hiding so much in his burrow.
<Sounds like he has adjusted well. Very good.>
My only concern is that he's moved burrows probably three or four
times, from the back of the tank, to the front of the tank, to the
side, back to the front. After the first two times, I thought perhaps
the issue was the
depth of the substrate (currently a fairly coarse aragonite), so I have
added some additional mixed coarseness substrate to some of the areas
where the substrate was a little thinner (2" - 2 1/2") and he
seemed to want to hang out. Despite this, he's moved out and back
twice more - I even caught him in the act this morning:
<Something is harassing him.>
When I got home after work today, he'd made the burrow featured in
the video, covered one of my plate corals with substrate...and then
moved back to his original burrow in the back. After a somewhat
rambling intro (my apologies), my question is - is this behavior
something I need to be concerned about? Perhaps a symptom of
displeasure with the substrate? Or is this just normal behavior?
<They will move from time to time, but if he is moving constantly,
he is unhappy with something - it is usually harassing tankmates. I
would suspect the Angel or the Wrasse>>
If you don't mind my asking a quick follow-up question, my Pygmy
Angelfish is, right now, very very small - maybe 3/4" long. I was
concerned that as it grew, I might be overstocking my tank with the
other three fish. Do you agree, or should I be comfortable with those
four fish going forward?
<It is a bit overstocked in my opinion, more from a psychological
crowding perspective. The Pygmy Angel in particular is a rather
I wanted to thank you for the service you provide - it's a wealth
of information, and I try to read some several times a week. I've
learned a ton, and I consider myself a better aquarist for it
ownership of the Conscientious Marine Aquarist). Thanks very much for
Re: Jawfish: System/Behavior/Compatibility
Thanks for the prompt response - I hadn't seen any harassment, nor
competition for food, as I made sure to feed the other fish up front
generally, and target feed the Jawfish with a turkey baster one pellet
at a time.
<Sounds good, but the difference is, what we perceive as bullying
and what the fish perceives as bullying.>
However, I'll keep an eye on the Jawfish over the weekend when
I'm at home and see if there's any visible harassment, or if
things settle down..
As far as the overstocking, I'll be starting a fish tank at the
office, and I'll see if I can't move the angelfish to that one
once it is established - it's very pretty and active, and I think
it would be a pleasant sight there.
Again, thank you for your time,
<Again, my pleasure>
Jawfish Behavior 9/21/06 Hello WWM crew! <Hi Scott> I
have a question regarding a Yellow Head Pearly Jawfish I purchased for
my 30 gallon reef. I added the Jawfish to the tank about one
week ago, on 9/13/06. After adding him, on the first night,
he found a place in the front of the tank and just sat there overnight.
<Unusual. Did you acclimate with lights out?> The next
day, when the lights came on, he dug a burrow underneath a large rock.
Since that time, he has covered the hole to his burrow and refuses to
come out. Thinking he might be dead, I dug out the opening
of the burrow and within several minutes he appeared from the burrow,
only to begin covering the opening again. During my research
I read that they can survive for a week to ten days with no food, but
what I found very troubling was that yesterday, after I dug open the
entrance to his burrow again to get him to show himself, I tried to
feed him some brine shrimp that had Garlic Extreme added to it. I put
the brine in a dropper and shot it at the opening to his burrow and he
took a mouthful of it, only to spit it out the opening of his burrow!
He did the same thing with a piece of krill. He insists on having his
burrow completely closed up and I can locate no other openings around
this rock. I have been able to find no literature or any other aquarist
who seems to know why he buries himself completely under that rock.
Thank you very much for your time and any help you can offer.
<Scott, as you know, it is quite normal for Jawfish to
burrow. I'd be worried if it didn't
burrow. I'm thinking he is burrowing under the rock as
the depth of sand is not to his liking and there are no small pieces of
rubble for him to reinforce the burrow. Five to seven inches
of sand is ideal for these guys. If this is provided, they
will generally burrow near a rock, but not directly under
it. They seem to feel more comfortable with a 360 degree
view of their surroundings. On feeding...Jawfish can
sometimes be troublesome in this regard. Best way to
acclimate in this regard is to offer live food, then slowly try to
acclimate to a good quality frozen food chopped into small
pieces. It is always a good idea to use a dropper and direct
food near the burrow. Another problem may be tankmates. They
do not do well with aggressive eating fish and/or aggressive fish
period. If this is your case, the Jawfish will do well and
eventually die. Jawfish do much much better in a specie
tank, preferably with three to four other Pearly Jaws. They
seem much more comfortable this way as each fish is always on the
lookout, and when one retreats to his burrow, the rest follow. It
reminds me of Meer Kat behavior. Hoping this will help
you. Do check out our info on Jawfish on the Wet Web
Media. James (Salty Dog)> Scott
Re: Jawfish Behavior 9/21/06 James,
<Scott> Thank you so much for your reply to our question!
<You're welcome. Scott, in the future, please reply
with the original query. Makes it much easier to file/place.> It is
greatly appreciated. If I may trouble you for one last time for a final
question, please comment on the following. As you mentioned, it is
quite common for Jawfish to burrow in the substrate, however, all the
literature I have found in my research describes their burrowing as
having a hole or entrance to the burrow, from which they will peak out
or stick their heads out the burrow opening. This particular Jawfish
buries himself completely, seals off any openings to his burrow, and
simply stays put constantly. The only time I see him, and
the only chance I get to try to feed him, is if I pull the sand away
from the front of his burrow so he has to come out to close it up
again. <As I mentioned earlier, the recommended sand depth is 5 to 7
inches for the Jawfish to construct a burrow to his
liking. Again, they do much better in a species tank in
groups of three or more. No aggressive feeders should be
present along with aggressive fish. Good tankmates would be
Firefish.> I acclimated him with the lights off for a full day,
turning them on the following morning. There is about 3 inches of
substrate of an aragonite sand and a crushed coral mix. <Yes, please
re-read the original query with my comments.> The other inhabitants
of the tank include a small clownfish Amphiprion Clarkii that is a
rather aggressive feeder and a six line wrasse, who just slowly graze
the live rock for food. There is also a small Coral Banded
Shrimp that is very inquisitive and some hermit crabs acting as a clean
up crew. During my research I found information suggesting
that large aggressive fish could cause a problem, but I was able to
find no mention of the particular fish in my tank. The place
I bought the fish from, Live Aquaria, assured me these fish would be
fine with the Jawfish. Would it be a good idea to remove the Clarkii to
a holding tank for a while? Maybe the Coral Banded Shrimp as
well? This little Jawfish is proving to be quite reclusive.
<If you want to enjoy the antics/personality of these fish, I'd
set up another tank large enough to keep three of them. Blue
Legged Hermits and a few snails would make a good clean up
crew. Otherwise, your chance of success with these fish will
be minimal. They are a shy fish and become nervous with
other fish hanging around. A feeling like...if you thought
four or five guys were hanging around your house, waiting to beat you
up when you came out, would you go outside? Maybe, but very
cautiously.> Once again, thank you so much for your valuable time
and input. <You're welcome. James (Salty Dog)>
Jawfish - MIA? - 09/15/2005 Thank you for a wonderful
website. <Glad to be of service!> My question is about my
Jawfish. I put it in about 1 month ago and it was visible
for about 2 weeks. It has since disappeared. My
substrate seems to have received a work-over during the night on a
regular basis. Substrate is continuously moved and piled up
in different places. Is it possible for this fish to be
alive and living under the substrate where it cannot be seen or is
something else doing the construction work? Please help.
<It is possible that the Jawfish is still around, perhaps doing his
work at times that he isn't or can't be observed, and remaining
well-hidden much of the time. Of course, it is entirely
possible that something else is doing the remodeling. Not
knowing anything about your system or what you've got in it, there
is no way for us to know. Sneak out at night after
lights-out on the tank with a flashlight with a red film over it, and
see if you can find the Jawfish - or another culprit - doing some
late-night redecorating. Wishing you
Powder Blue / Pearly Jawfish Hi Bob, Got a couple of
questions to ask if you don't mind :)
<<I don't think Bob minds at all, I get to answer the
email... I hope YOU don't mind ;-) >> I have a 50 gallon
reef, with ample filtration, great water conditions and water movement.
Until last week, the only fish residents were to false Percs. When I
went to the fish store last week, I saw this little 2-3 inch powder
blue in a really bad tank, overcrowded by a lot of other fish, many of
which were tangs and since it was so small, it was getting into really
bad shape. I couldn't help it and decided to rescue the poor little
guy. I know what I have isn't exactly suited for a powder blue but
if it does happen to make it pass the mysterious death period of the
first 2 months, I do plan to go to a bigger tank later on as it
<<If you do make it through this period, I would get the larger
tank before it grows - large quarters are necessary to make this tang
Right now, it is doing much better than it was in that nasty tank
before. Its body is rich blue and head is deep back, as compared to the
pale colors it was exhibiting before. However, it only excepts very
little bit of the food I offer it so far (Formula 2, Formula 1, brine
shrimp soaked in vitamins,
<<you should really use Mysis shrimp instead of brine - brine
shrimp, regardless of gut loading and vitamin soaking are
and rather spends his time picking off algae from the rocks, rear
glass panel and the sand/crush coral. <<Yes, and you should
probably try to substitute this with algae based foods, dried seaweed,
Nori, etc.>> It is not showing any signs of emaciation as it is
quite robust. Will he begin to eat more of what I offer him soon? Also
does the powder blue eat hair filamentous algae like soft hair algae (I
previously had a yellow tang and it ate all that hair algae up with a
<<I would say this is different from tang to tang, but yours may
find an appetite for it in time...>>
In addition, sometimes it swims around the tank exhibiting the lines
going down the blue part of his body (signs of aggression), I think
perhaps looking for a fight?
<<These color changes can mean all kinds of things, surprise,
stress, aggression, depression, sleepy-time, etc.>>
Is this normal for a new addition (4 days)?
<<Well, most fish take weeks to adjust to a new tank so...
I'd say the flashing is normal for a fish who is feeling a little
out of join in a new tank.>>
Lastly, I added a pearly Jawfish at the same time and this fish
is quite comical. Although I hardly see it, I do enjoy watching this
fish more than I thought. Its already dug itself a nice burrow with and
continues to do stuff with the sand/crush coral and stirring up the
sand bed. Yesterday, it ate for the first time several brine shrimps
since I saw it peeking its head out from the burrow......When do you
think this guy will come out a little bit more and eat a bit more?
<<Well, these fish are known for staying mostly out of sight. In
the burrow most of the time. Will likely only leave the hole for food
if it doesn't drift by.>>
Will it do okay with the powder blue in the tank?
<<I think it will do fine.>>
It really seems to me that the Powder Blue scares it when it
swims by and it quickly zooms back in the tunnel.
<<Well, the Jawfish is likewise a bit uncomfortable with the new
surrounds. Give it some time.>>
Does this mean that I have to get rid of one of them?
Thanks Bob, sorry for the long e-mail and I look forward to your
reply. Sincerely, Jimmy <<Cheers, J -- >>
Land of The Lost...(Missing Jawfish) I've had my jaws for
three weeks now. <Wow- I've had mine all my life...almost broke
one surfing once, but that's another story...Scott F with you
tonight...Sorry about the wisecrack- but you gave me an opening- I HAD
to take it!> They even dug a neat little hole at the back corner of
the tank. Three days ago they vacated the
premises. I have looked in the sump, in the overflow, on the
floor and every hole I can find without tearing the tank
apart. Is this normal? If they were dead I am
sure they would've showed themselves by now. I would
have seen the scavengers all munching on them and I have not seen that
yet. <Well, Jawfish can and do hide in rockwork, as well as in the
sand. I would not give up. On a darker note: It is quite possible that
fishes could die in an established reef system and be consumed by the
scavengers in your tank (without your noticing) and leave no
traces...Keep an eye out for these guys... If they are alive-
they'll show themselves eventually...Regards, Scott F>
Continual Relocation (Bagman Jawfish).... <Hi Grunfled,
MacL here> Have a 125g AGA....population, IPSF bottom feeders, 3
yellowtail damsels and 2 yellow headed Jawfish. Running an
ETSS Reef Devil in their sump. Tank up since 04/16...live
rock, fully cured, added 04/30...all readings fairly normal. <Which
means?> The 2 jaws settled in nicely 3 weeks ago and immediately dug
burrows, quite near one another actually...looked like they were even
inter-connected under some live rock. Well, 5 days
ago, jaw #2 disappeared...found him in one of the overflows (tank is
100% glass covered)....retrieving him (her) she fell into the small
space between the inner and outer shell of the overflow (new style)....
she came back out in the AM...and I re-caught her and returned her to
the main tank... now she has moved virtually every day...inside a live
rock on day 1.....dug a corned burrow on east side of tank on day
2.....returned to west side corner on day 3 (near her
"partner"...these 2 were co-habitating a small tank at the
LFS and not fighting, so maybe a pair?)......packed-up and moved to the
east side hole (it's really not a burrow) this AM but is actually
under a mess or Chaeto macro that I've got there....not eating
hardly at all... <These fish do best with feeding by the turkey
baster method. Meaning take some Mysis or other meaty food,
chopped into tiny pieces and put it in the baster and feed them
directly over their home.> oh, yeah, the question....is this
typical...will she settle in...geez, it's a 125g wit 4" or
better of substrate (oolitic sand plus the Carib sea reef sand plus
tons of shells plus crushed coral....is the other jaw
bothersome?...heck, they lived, slept and ate next to one another for 2
weeks before this "bagman" routine started.... <I love
these fish they are so very wonderful. Actually its very
typical for them to keep moving around until they find the
"perfect" home. Even if a pair, often they will
want their own space. They will constantly rearrange and move their
burrows around once one is finally picked. That's part
of their charm. I think that eventually they will calm down for you,
its like a kid in a candy store, too many good places to live.>
Thanks, Grunfled in Detroit <Good luck>
Jawfish Question Hi,<Hi there! MikeD here> I have a 50
gallon saltwater acrylic tank. In the tank I have a maroon clown fish,
a Pelewensis Butterfly, a Yellowheaded Jawfish and a chocolate chip
starfish. I have had all the fish for at least 4 months
<Wow. That's pretty close to a full load>
As of the other day, my Yellowheaded Jawfish started eating less then
usual. Also, the Jawfish had been hovering over her/his hole, but has
started (again as of the other day) to swim all over the tank. Is this
normal behavior or do I have a problem?
<That's hard to say. It's common for them to relocate on a
regular basis, but they ARE sensitive to high nitrates, so it could be
either. You don't mention whether or not you have a skimmer, but
I'd suggest changing about 5 gal/per week to keep nitrates at an
Please help. I am still a novice and am afraid I will always
be. My water parameters are: Ammonia 0, Nitrite 0, pH
8.2, Nitrate 40, Salinity 1.022.
<The parameters appear OK, but yellowheads are more of a true reef
fish, thus tolerate change poorly, the reason I suggested weekly,
rather than monthly changes, as many people do> Thanks Lou
Jawfish Question (continued) <Hi, Mike D here> Thank
you for your quick reply.
Currently I do water changes every three weeks, about
<The problem doing it this way is that you're allowing a build
up, then doing a large drop, all at once. I do 5 gal/week, making it a
5 minute job that too easy to even bother putting off and have been
having great results, utilizing nothing but dechlorinated tap
Would adding bio-Spira help at all?<Is this a product?
If so, I'd probably advise against it> Is there any
living being I could add that would help to keep the nitrates down?
<Sure. Any type of macro-algae utilizes nitrates and phosphates for
fertilizer, so any that you encourage to grow are a big assist. Many
people install a lighted sump with lighting that's on 24/7, while I
prefer to grow the fauna in the tank itself, which the fish seem to
Jawfish Behavior (9/8/04) <Please capitalize the first
letter of sentences and the proper noun "I" so we and our
readers can read your messages more easily. It takes a lot of our
volunteer staff's time to fix this.> First of all just want to
say that I love your site, I read it all the time when I get a new fish
to learn about it. My question today is I have two yellow head Jawfish,
I bought them from a pretty nice pet shop and both were pretty young
and sharing a burrow. After floating the bag for about 20 minutes I let
both Jawfish go. Immediately both swam under a rock and
began building a burrow. Both are fine now as they both live in the
same burrow, one live in front of the burrow and the other in the back
of the burrow since the burrow they share has two opening. The front
end to the other end of the burrow is about 5 inch apart. so really the
two Jawfish is 5 inch apart from one another.
<Are you certain this is a single burrow with two openings, not two
My question is, could this be a male and female pair?
Or is it possible for two male and two female to pair up,
<not so likely>
because I read some where that they are really aggressive against their
<Only in tight quarters. Several can co-exist in a large tank if
they can stay about 12" apart, as in the wild where the live in
Or do you think that when their young they aren't aggressive toward
each other but when they get older one of them have to leave the
burrow. I do see them both taunting each other with there huge mouth
now and then but I know nothing fatal will come out of it because both
share the same burrow at night when they sleep. If both is a pair is
<Who's to say what's normal or not? If they get along, then
it's normal for those two and you needn't worry.>
Is the taunting of the with their mouth normal.
<Yes, could be playful, sexual, or aggressive. If they get obviously
aggressive toward each other they may need to be separated, but if they
pair up or your tank is big enough (say 75+ gallons) everything should
Thanks a lot for helping with my questions.
<Hope this helped. Steve Allen.>