After the ich outbreak that took out all my fish except my foxface, I bought another lionfish and he has been in QT 6 weeks as of today. He is eating well. Already eating frozen shrimp and silversides. My question is, if he has shown no signs of any illness yet, is he cool to go in the main tank now? This pretty much guarantees I'll have a disease free tank? After the carnage a while back, I'm leary to throw fish in the tank now. The foxface was successfully treated with hyposalinity and he is in the main tank. I guess I'm nervous about adding a fish without treating it for something? Thanks for your input.