Two days ago I noticed my blenny wasn't doing well, he ended up dieing. By the time I noticed there wasa problem it was too late since he hides a lot. Last night I noticed the same symptoms on my Clowns. I just went through a case of ich where I lost a sailfin tang a week or so ago. This doesn't look like ich though. Instead of white spots, it's a white film covering almost the entire fish. Would this be Marine Velvet? I'm setting up a hospital tank now. What is the best course of action, copper?