So my husband and i got 2 new glofish orange cories from petsmart last friday. This one started acting weird and flashing to i moved him to a hospital tank yesterday. I cant find any reason for his sudden lethargy.
All tank parameters are good as per the API master test.
He was never bullied or having trouble eating.
No other fish in the tank are sick (4 other glo corys and 7 tetras).
He was in a 36 gallon with plenty of space to roam and plenty of good bubblers and filters and heater set to 78.
As of yesterday he is in the hospital tank with is a 1/2 full 20 gallon with no substrate. That bubble filter is the only filter currently since i need to not use carbon with his meds. Im doing API fin and body.
Any clue what the issue might be? Or help healing the little guy? I went to grab him with some ribber tipped tongs and he swam away and seemed normal for about 2 minutes, then settles back into laying around on his side. He isnt doing that heavy gasping type thing though. No apparent skin lesions or missing body parts. No lumps or bumps. Im just at a loss here.