Hi, I've kept small freshwater aquariums for years but have recently been battling problems with algae and disease. In the last couple weeks, two of my tetras (2+ yrs old) showed signs of white cottony fungus. UV
filter seemed to take care of it and they were fine/clear, but then it showed up again with a vengeance. The next day, one of my platys started swimming sideways and demonstrating clamped fins.
I got Tetra Lifeguard and used the first dose last night ... but then I just realized it's not for scaleless fish!
Did I just kill my corys?? They look fine right now, but I feel terrible and don't know what to do. I don't have a hospital tank (I know, terrible) but can go get one. Will this help? What can I do for them?