Okay, I woke up and saw Castiel with fin rot today. I have no idea how he got it. Anyway, I am giving him a salt bath in the next few minutes. If possible, I need these questions answered before his salt bath is over. Here are my questions:
Should I put aquarium salt in his tank?
If so, how much in a 5 gallon?
Should I remove the biofilter?
I'm thinking about putting him in a quarantine, but I'm not sure. I 50% his tank on Thurs, should I go ahead and 50% or more his tank again before putting him back in?
Thanks for any and all the help!