@rkpetersen Im not convinced it will work either, but it’s unilateral so I’m hopeful it will resolve on its own based on what you’ve said. The fish are now out of copper and got a 100% water chance so I’m hopeful that will improve their odds of resolving on their own. I’ll try the mag sulfate tomorrow, and I ordered neoplex from amazon which will be here Monday. If it’s not cured by Monday I’ll dose neo.