So my betta just suddenly lost his dorsal fin probably like 3-4 weeks ago. He was getting along fine, eating, acting normal. I was just adding AQ salt to his water to try to help it grow back. I wasn't paying really close attention to him until I noticed that his body was like "rotting". The only thing I had on hand was Betta Fix so I used it. I haven't seen anything too drastic, but he is improving and I can see some blue scales growing back. On the bottle it only says to use BettaFix for a week, and he has been on it a week if not more. But he is healing up and I'm scared that it will just get worse if I take him off it. But what if I leave him on it? Can it hurt him? What do you guys think I should do? Right now he is eating and acting normal and he is in a heated 2.65 gallon. Thanks!