I've tried everything you could imagine trying to beat ich. I've spent hundreds of dollars trying to cure a fish. I've dismantled tanks for fresh water dips and copper dips. There is one additive I've found that has worked better than anything else I've tried in my 25+ years of reefing. I've got some cool reef stuff coming up later, hit the sub and bell icon so you don't miss. This isn't a reef channel, but it's one of the things we do.