I had an ich or velvet breakout in my DT in June and I pulled the fish out and treated via TTM. I read you shouldn't take a puffer completely out of the water so they don't suck in air and hurt themselves, so inevitably some water got transferred every time, and 6 weeks later the fish is looking like the start again. I'm attached to my puffer so I don't want to risk copper. It seems my only option to knock it out, regardless of whether it is ich or velvet is the magical, expensive, chloroquine. Because it sounds like velvet is immune to hypo, and some ich is resistant too. What would you recommend?