I went to petco today and found a fairly young male betta who seemed to be pretty sickly. he kept balancing on his tail because he seems to have trouble swimming. I bought him and put him in a 1 gal tank. because of his inability to swim he had to struggle to breach the water for air. since I have lowered the water to about 3inches high so he wont have to try so hard to get air. I got him because, based on how the other dead bettas (about 3) I didn't think he would get much care there. I wan't to make sure he is getting better care here, so it would be great if anyone has any suggestions on what would help him get healthier.