My 55g had ich 3-4 weeks ago. After attempting the heat treatment, I used coppersafe. I left it for 10 days, then added my purigen back to the tank, and began weekly water changes. Since the , 2 of my angels have gotten holes in their dorsal fins. My nitrates never went above 20, and I just kept hoping water changes would fix them. They seemed to repair themselves. My rams began acting lethargic, but I assumed it was due to my section ing them off in hopes they'd try to mate again. I fell asleep tonight, and woke to find my best angels dorsal fin torn down the middle, and pits in her side. The pits are white, but they are not raised. They look more like indents or missing scales. A different angel had the same pitting on her side last week, but it went away. I'm at a loss. In going to try to add a pic. If its not attached, it will be under my profile in the freshwater-problems-sassy album. It's the completely black fish with the problems this week. Sassy was last week. I feel like I should do something, but I don't know what!