Looking for a diagnosis for my peppered cory.
Tank is 29 g with rocks, drift wood and fake plants. Sand substrate. API test kit shows no ammonia or nitrite and around 30-40ppm nitrAte at the end of the week when I do a pwc
~50%. Temp is around 76F. air stone.
tank mates are 11 glofish tetras, 3 peppered cory and 1 albino cory and they are looking normal and healthy.
The cory in question looked fine a week ago - barbels were normal and was active like the rest of the corys. last night I noticed he was kind of just sitting on the bottom and not moving alot. When I looked closely I noticed rapid breathing and stunted (about half the usual length and rounded off at the end) barbels. I've had this fish for about 2 months now along with the other corys.
Anybody have any thoughts on what might be going on with my cory and what I might do to get him better?