Thing, this doesn't really require any cleaning. I've had all mine running since Jan and have yet to clean them, they aren't even remotely close to being cleaned. On the plus side since Jan I haven't cleaned any type of filter like I used to with all those canisters. The tank space is very minimal, to me this outweighs the ugly sights of tubes, heaters, etc. that litter the tanks of 95% of fish keepers tanks.