I have 2 1200's setup on a wavemaker on a 90 Gal. I just set them up about a month ago to replace a Koralia and a seio. These are the ones that I got "Algae Free Sure Flow 1600 Maxi-Jet Upgrade Kit". Marine Depot carries them. They just recently started shipping them with a different propellor which puts out more flow. They claim 1600gph. It definitely puts out a lot of flow. When I had both of them on at the same time, it kicked up a little sand from the bottom, but not too bad. On the wavemaker, they are alternating on and off so that has worked well for me. My corals are definitely enjoying the extra flow. They are a little noisier then I would prefer, but not so bad that I would stop using them. Definitely noisier when you first set them up but then after a few days it gets better. The adjustable bracket is nice. Definitely get the magnets, this way you don't have to worry about the suction cups falling off. If you are looking for a cheap alternative to a Tunze, this is the way to go.