So I usually am on this forum helping people. Now I need quick help. I have a pair of deep water basabei butterfly's that were all good and eating. Came down with massive ich in the hospital tank they are in. Keep them there cause ot separate chiller at 70 degrees. Ok so no problem. Throw some copper sulfate ie go slow through 24 hours into hospital tank to get copper to. 15 to. 20 ppm of old style copper sulfate. So what's the problem. Of course appetite. One of the butterfly's stopped eating. How long before that becomes more important than the ich. I can always swithc to cp it it's easier on the Flys. Any advise.??