I mentioned before that i've got fungus with my silver doller...So I waited 3 days, started to repeat the treatment, because the fungus came back...It's day 2 now, and my blue gouramie developed an ULCER!!!!!It looks BAD!!!! I' ve done a water replacement(20%) and decided to stop the treatment, was worried that the meds might be causing the problem I don't know what to do...I'm very stressed and feel like giving up. I don't know how a hospital tank works and don't think I will be able to cope with it? I can't leave my poor gouramie like this neither my silver doller