I have to say, I love my aquaclear. I have an aquaclear 70 on my 55g. I actually traded a 110 for a fluval 404 that was missing a piece. (it was a good trade) I love them. They are SOOOO easy and fast to clean. I have to admit, I rinse the HOB media every time I do a water change, and well... how often does everyone rinse their canister media? ummm I have to say, mine is lucky if it is once a month.