Jeff don't get the Skillter! I too have a 29gal tank and looked for a filter/skimmer combo and choose the Skillter400. The skimmer doesn't work at all. The only good thing about the Skillter is that it has a large area to put other media after you throw out the reaction chamber. I finally broke down and bought a Remora Pro Skimmer, after all good post I read in this forum.