Yeah he has a filter, I turn it off at night cause it kinda bugs me, it's pretty close to my head lol. He's in a 5 gallon tank with a heater and I change the water when I can. He lives with a small frog and a pair of snails. The only place under an hour from where I live that sells fish stuff is a Walmart, so I'm not sure what they have that I could use, they kinda have a limited supply. There's a pet store in a small city an hour away but I don't know my way around there, especially coming from my college. I'm sure Walmart has SOMETHING I could use though. The wierd thing is, last year he was in a 2 1/2 gallon with only a small undergravel filter and he was always healthy. Oh, and one of my friends online said he heard your not supposed to change the water but every three months because betta's live in the muck where they get them in China. Is that true?