Ok, so my tank has cycled and then I bought a couple of
green chromis' on Saturday. I've been checking everything and it all was good. Temp is sticking around 76F or so.
salinity is 1.022 or so.
pH is currently at 8.4.
ammonia, nitrites, nitrates are all at 0 (
API test kit). I even took in a sample of the water to make sure everything was good. Yesterday, I lost one of them.
The other one has been doing fine up until tonight. I went to the store where I bought them from and they replaced the one that I lost and I bought 3 more (plus a few emerald crabs). Now the one was doing well that I bought back on Saturday is up at the top of tank at gulping at the surface. The thing is that he would be at the top of the tank during the day but then go to the bottom during the night. Right now though he's up at the top even though it's after midnight (I need sleep).
The other ones that I bought seem to be doing fine right now. They're all hanging in a group. I'd think oxygen starvation but I have a
sump pump and lots of bubbles are getting produced from it plus I have a air stone in there and a bubbling treasure chest (thanks Finding Nemo).
Does anyone have any ideas why this fish seems to be under stress?