I'm addicted to bettas, what can I say. However, it seems that whenever I get them, they succomb to tail rot. Is it just two major pet stores that shall remain nameless? I have a 2 gallon tank and I treat the water and everything, but I lose them. Any tips? I have sanitized the tank according to the way mentioned on bettatalk.com....but does anyone have any luck with bettas from major pet chains?