Hi all, I have a common comet goldfish that my sister brought home from a fair who is about a year old. He grew up in my 20 gallon and then moved to my dad's 60 about ten months ago, and he has been doing fine. However I noticed he is kind of less energetic lately, and I think he has ich. His eyes are kind of cloudy and there are little white dots on his fins, and some of his scales are faded or fallen off. Should I isolate him to a tank for treatment? There are angelfish and discus in that 60. I only have a ten gallon hospital tank, though. I have heard about the heat treatment but there is no way my dad would let me do anything to his tank heat wise, and probably not medication wise either. Would my goldfish survive the move into a ten gallon hospital tank that hasn't been fully cycled? He is pretty big, too, about six inches/the size of a gold gourami at this point.