I use a H.O.T. Magnum with the micron cartridge. That seems to do the trick and is a lot of less work than the Vortex. Another method is the use of filter sponges. (Aquarium Technologies, Hagen, Azoo, etc.) Now I know that they're not a welcome addition to a otherwise beautiful aquascaping scheme, but they work. Especially when they're used with a powerhead (Aquarium Technolgies models)and the sponges are cultured. You'd be suprised in how well they clean up. I hope this helped.