No, just the seio's. Then by having the other 2 that are on full time I get an increase/decrease in flow whereas on some like tunze's you can actually go left and right with it since they are independent. To some degree you could do that with the seio's by only putting it on one seio. But that wouldn't quite be the same. I guess that would be more like a typewriter action is. Any changing is good though so it probably doesn't matter much. I'd like to maybe use those vortex ones if they ever come out with a controller, and I think those are going to be individually controlled. It would take 2 seio controllers to do that and synchronizing them to be exactly opposite would be a booger to do and require frequent re-synchronization.