I just got my fish about a week ago, and all of a sudden today 2 of them are looking abnormal. My dwarf gourami has tiny black dots along his top fin, and one of his cheeks looks darker then the rest of his body. A day ago I saw the top fin start to peel, what looked like dark skin, with regular skin underneath. The dots started this afternoon, and I've seen the dwarf staying hidden in my Buddha statue. He still zips around the tank during feeding. I'm doing a water change the next morning to get things started. - Do you know if this is ick? the skin coming off puzzles me. - What medication should I use? - Should I isolate him? or treat the whole tank in case it has spread?