Hi! I got my ADFs (2) about a month and a half ago from my LFS. all of the sudden the inside of their legs are red and one of them keeps hanging out at the surface. He goes to the bottom of the tank sometimes, but then he'll swim back up and just float there for a while. I do 20% weekly water changes. I read that it could be a bacterial or fungal infection... What should I do? Any advice would be greatly appreciated!!!



-Ali