I've had a Picasso Trigger in quarantine tank for 6 days. On day 3 I noticed the ICH. It was so bad this morning that I'd had enough and freshwater dipped him. Six hours later there is no sign of ICH and he's swimming and eating better than he was a week ago!! My question is, before I set up the QT, I added a Foxface to my display tank. He's always had two spots on his body. I read somewhere that you can't dip a venomous fish. Does anyone know if this is true?