[Myka]

Both of those sound waaaaaay more expensive than what I'm looking for. I'm looking for just a simple $20-30 piece of equipment that I'd hopefully find at Home Depot or something. I just want it to run 2 powerheads so that when one is on the other is off. It's for my baby Bangaii's, and if both powerheads are on together it will be too much flow, but one of the powerheads is a return sort of thing. I don't want the return to run all the time because it will flush the BBS out, but I don't want their tank stagnant when the return isn't running either. So I want the powerhead to run when the return is off, and the powerhead off when the return is going. Hard to explain...lol.