the blue tang is acting/swimming/eating normally again in the 55 gal after a week in the qt with Coppersafe. within a few days, he's back to getting white stuff on him again - this time looks like infection and ich, and he's scratching up on the LR again. Poor little tang, I think he's on his own this time, I'm just going to keep feeding him. I think I did all I could. Is it possible the 2 yellow tail damsels are stressing him out, causing the ich outbreak?