We just came home and my son's betta is swollen. Looks like all of her scales are flipped out and she is puffy. She is swimming, only a little, and she is keeping her mouth on the water surface. She is in a small(1-2g) tank by herself. She is fed daily but I was informed that the pump for her air stone stopped working, so there hasn't been any surface agitation for awhile. I put a dose of melafix in the tank and stirred the water surface a bit. What is going on and what can I do to help her? Thanx.