Ok so I have a pretty in depth QT regiment following humble fish to a T using copper for 30 days the prazi for 14 days. It looks like a few of my fish have gotten white bumps but it looks like it's under the skin not on top like ick usually is. It's hard to see you have to be at the right angle. I've added a few pictures. This is in a 250 gallon fish only. And I don't see it on the fins only the body