Yes I should have put him in something bigger to begin with, I agree with you. He was acting strange from the beginning though. I don't think I'm going to buy bettas there anymore. Another time I bought a fish there and it died a few days later. Took it back and they said it was their fault because of some mishap with cleaning, the betta water had been overdosed with ammonia. I guess a lot of their fish had died or gotten an ammonia burn. I will know better next time to recognize what is wrong quicker. Thanks for all the advice though!