yeah, this could be easily scaled up to work on a 10 gallon. Something to keep an eye on, AquaC is planning to come out with a 'nano' remora suitable for 10 gallon tanks.

Oh, and apparently Aqua C holds a patent on spray injection skimmers, so these can not be sold, I will document my sloppy acrylic work as best I can so that it is easily repeatable however... not illegal to build your own, just to sell it. I am ripping off the remora design as best I can.