I bought a power strip for making waves, it alternates power between two outlets and you can set the duration. A third outlet is random and there are three full time outlets. My question is, are there any power heads, with decent flow, that can operate on this system? I have two Seio 820's but their not recommended for this service and I have them on full time in my 75. I know that Tunze has the system for doing this but I don't want to invest that kind of money in movement at this time.