My clown fish is swimming sideways near the power head. I'm thinking it has swim bladder disease? How and what should I treat this with? I had placed some flake food in the tank last night (typically feed all frozen). Maybe the fish took in some air with the flakes? I have also read where the fish could have overeaten? This maybe possible since I did feed some flakes with the frozen. What's the best way to treat this? Currently there are no signs of any other infection and or spots.