I wholeheartedly agree with oscar83. That protein skimmer SUCKS! At the very least get a prizm or a seaclone. I know, before someone bites off my head, lots of people hate the seaclone. I think it's fine, and it doesn't cost an arm and a leg. It's not the best in the west, it's cheap, but it does it's job well enough that for the price I can't complain. The prizms seem to have a somewhat better reputation. I've never had one, I have had two of a similar design made by ViaAqua, and they rivaled the VisiJet for worst filter in the world IMO. If you've got the money and you want a good skimmer, I'd check out the Berlin Hang-On Skimmer or the Bak-Pack2. You can pick up the Berlin from Doctors Foster and Smith for $200,and it needs a pump, the Bak-Pak is pretty popular and has a little bio bale thing for bacterial culture, and I think they're around $130.