Quarantine your fish within a healthcare facility-clean up tank and watch for illness. If the thing is ich, micro organism, or other health problems, do your best for therapy. Do not add your fish again into the leading tank until eventually it has been balanced for around thirty times straight. https://elliot5xfov.acidblog.net/63172316/the-smart-trick-of-how-to-isolate-tanks-that-nobody-is-discussing