Best powerhead

[DanG]

I've got a couple of K3 hydor pumps and am very happy with them, but I switched to a vortech so I could get the wavemaker action and be able to remove some more heat from the tank.
You can get a controller for the hydor korilla pumps. Hydor makes one, and people also have success running them off of the seio wave maker because the seio just turns the power down, not off.