I have a penguin biowheel right now and it just doesn't fliter my tank that well. I can only put a hang on fliter on my tank so if anyone has a hex tell me what you use.
how much are canisters. I'm not getting a bigger biowheel since I'd have to cut the top of the tank, I'd just get a different tank if I could but being 14 I don't have any place to put it yet since my parents won't keep one in my room.