Hi all I have discovered ich in my tank and am treating with wunder tonic it's blue and said it's for most diseases common in fish tanks including ich but I was just reading up on treatments online and read that you should use it at half treatments for scaleless fish and tetras, I have rummy nose tetras and neon tetras as well as a glass catfish. I have been treating for 2 days now at full strength but have I just given my fish (mentioned) a death sentence?