I had another thread about my boy. He was in a divided tank with two other fish (who do not seem to be ill - they look and act normally). He became bloated, so I fasted him for three days, then I fed him a little frozen daphnia, hoping that it would clear him out if he was constipated. That didn't seem to help, so I decided to move him to a 5 gallon filtered tank that I had lying around.
I acclimated him first then slowly added epsom salt to the tank (1 tsp per gallon - pre-dissolved). This morning I looked at him and he was still just as bloated, but it looked like there was some white, sort of stringy looking poop hanging from him. I didn't see any poop on the bottom of the tank (I purposely left the bottom clear so I could see any movements he had).
He seems to be moving around fine, his fins aren't clamped and he will still flare up if you put a mirror in front of him, but he's a bit less active than he was. He will still beg for food, though I haven't fed him anything since the daphnia. His scales don't really looked raised - just strained because of the bloating.
What should I do for treatment? Up the epsom salt dosage? Treat for internal parasites? I don't want to lose the little guy - I'm so worried about him.
Also, should I do anything with the other tank (which is a 10g filtered)? As I said, the fish in it seem fine, but if he does have internal parasites, it could have spread before I moved him. Is there any 'preventative' treatment I could do on that tank that wouldn't hurt my other two boys or should I just leave it alone until/if they begin showing symptoms of illness?