I just bought this guy from Walmart tonight after attempting to tell my sister no more fish. We ended up buying two bettas (she already has 2 females and a male). For Walmart conditions the female is doing excellent. She's giant and looks fat.
The male, however, is really small, probably young, breathing heavily, bloated, and seems to have some issues with his swim bladder at the moment.
He's in a very small tank for now, since he's having so much difficulty swimming at the moment, and that tank is within a 10 gallon tank with the female in it. The bigger tank is about 1/3 of the way full with a heater in it so the heat will transfer to him as well. A filter is not hooked up for now because of the water level.
He's hidden away from the female with a lot of plants and she doesn't seem to take notice of him like she did to my sister's other bettas.
Currently he's using an artificial plant as a support so he can be near to the surface to breath.
Here's a video of how he is breathing: http://s1114.photobucket.com/albums/...urrent=004.mp4
I'd like some advice as to what I can do for him to help him get better.