[aninjaatemyshoe]

You can now achieve a similar effect using variable speed Tunze pumps (6055, 6000, 6100, etc) and the Aquasurf control module that hooks into the Neptune Aquacontrollers. Vortechs can also do this with their new wireless controller. The basic principle behind the wave effect is to generate a pulse of water movement in your tank to generate waves. The timing of these waves is such that they constructively interfere with each other to create a resonance wave, which basically results in a sort of rocking back and forth of water in your tank.