gourami: dark underbelly, apathy

svetlana

Large Fish
Feb 16, 2005
327
0
0
55
Gaithersburg, MD
home.uchicago.edu
#1
Hi guys!
I have 3 gourami in my tank together with some zebrafish, neons and couple of dwarf puffers in 29 gal. For 3 weeks the gourami were doing very well, no other fish was added at the period. One of my gouramis had underbelly a little bit darker than others, but it was ok because it acted healthy.
Today all of a suuden this gourami looks underfed, with belly darker than usual and weak - has strength to come up for some air occasionally. Others are looking good as ever. All other fish is fine.

Do you have any thoughts what can be wrong? I'm going to change the water in case ammonia is up (i spent my kit) and this guy happened to be hypersensitive. It won't hurt but I suspect it is not the case.

I will appreciate your insights on this.

--s