My Black Molly seems to have several white spots on his body. They appear to be fungus. He has had this problem before and I treated it with fungus meds and they went a way. I'm afraid to treat him with medication because I have Swordtail fry in the tank and am not sure if it's safe. Other than the spots he seems fine. He is eating well. I don't have a hospital tank. So can't move him.