Grouper seems to be dying. Please Help!

fishfisher

Member
Hi everybody,
Does anyone know what might cause a miniatus grouper or any other fish to become pale, look bloated a little, and roll to one side?
I noticed this morning that my miniatus grouper isn't doing so well. He is pale and is kind of lying turned half way toward one side about an inch off the bottom. His position is normal except that his is turned a little and is barely breathing. He has some extra pale patches too. He was pointed straight up a little while ago. His eyes are open and he seems aware of everything, but his mouth remains almost closed and he seems to be giving up.
My tang, two triggers, and lunar wrasse are all doing great. One of my two perc clowns has also been just a little pale for the last couple weeks and hasn't been eating much, but otherwise he seems ok.
pH 8.1
Temp 81
Amm 0
N02 should be fine
NO3 under 25
Salinity 1.009-1.010 (Have been doing hyposalinity for 6 weeks)
I can only think of a couple possible causes- the hypo might be killing him. He's been in hypo for only 2 weeks, but did fine until now.
Last night a pipe sprung a leak and has been dripping since then, the pump was sucking a little air along with the water for several hours, so some bubles were shooting near the surface of the water from the return pipe. Could the bubbles have hurt him?
I put some of the water back into the tank using a clean and rinsed plastic food container that caught the drips from the leak. Could this have somehow poisoned the grouper? There shouldn't have been any chemicals or anything in it.
Also, my yellow tang chased him for a few seconds earlier today. maybe because the grouper looked sick so that he couldn't defend himself.
PLease help me. Thanks so much.
 

fishfisher

Member
P.S. He ate my yellowtail damselfish that was about 1.25 inches long about 5 days ago. The grouper is about 6 inches long. Could this have clogged up his system and suddenly started to kill him? He has eaten more food fine since then.
 

renogaw

Active Member
well, first a couple questions...
you've been doing hypo for 2 weeks, but not keeping it at 1.009? that's not hypo if you're saying 1.010. how many fish are you hypoing? 5? why so many? how long have you had the fish, and are you doing hypo in your QT or in your DT? how long did you take to get they salinity down to 1.010?
hypo shouldn't be killing a fish, it will stress them out, but there's something else going wrong. groupers eat fish. i'd doubt a damsel would be an issue, but i'm totally guessing there.
 

fishfisher

Member
The tank (100 gal fish only) has been in hypo for about 6 weeks. The grouper was acclimated to hypo in a qt tank over 48 hours, then acclimated to my 100 gal and put in there 2 weeks ago. This all seemed to work out fine because he has been eating well and healthy until now. I have been doing hypo for this long because the salinity jumped over 1.010 so I had to continue for another 3 weeks. I have 7 fish in there- all hardy species. I would take a picture, but the fish looks just like I said, pale and roller over just above the ground.
 

lion_crazz

Active Member
It is not uncommon to see miniatus groupers change their colors, sometimes getting paler or darker.
What is this fish eating? What was it eating at the LFS where you bought it?
 

fishfisher

Member
It was in a large tank with about 15 med yellow tangs. I don't know what the regular diet was, but I asked the lfs guy to feed it and he gave it flake food, which was fast and easy for him to do. The grouper ate well there for over two weeks and has eaten very well in my tank as well. I have fed him only thawed prime reef, but a couple days ago I ran out of that and could only feed him random thawed cubes from my Ocean Nutrician variety pack. Plus he ate that damsel about five days ago. Damsels are spiny and tough, not like the little feeder fish that some people feed to them that's why I wondered if that affected him.
 
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