posted yesterday about my siamese fighting fish/cory/barb problem
anyway, my poorly cory actually has been kind of floating around today and I've also noticed has red round its mouth so i'm wondering if in fact it hasn't been attacked by the SFF, but is actually suffering from some kind of infection?
I have read that I could add salt to my tank to help if it's bacterial? do you know much about doing that or if it's a sensible thing to do?