PETA has a very disturbing video about what goes on in pet store chains. It is very difficult to watch, but if anyone needs convincing to stop shopping at pet stores, that should do it. I bought a male betta from a chain store and he died a week later. Granted, his water was clean and he looked perfectly healthy when I bought him. Yet, they told me he could live in a tiny tank with not filter and that he'd eat flakes. When he wouldn't eat, they suggested frozed bloodworms. All my research has told me you are not supposed to feed the frozen blood worms everyday because it's bad for digestion and can cause parasites. Bettas can live up to 7 years if taken care of properly, but the pet stores won't tell you how to do that. You should go to a aquatic fish store if possible. Whatever you do, don't go to Walmart! Last time I was there I saw bettas on a back shelf amongst tank ornaments. The water was so cloudy that I could barely see the fish inside. One was dead. Some had fin or body rot. The others had various ailments and were struggling to stay alive.