Actually, I haven't given energy consumtion much thought. I'm so sick of dealing with power heads that I just want to get rid of them. Right now I have 3x MJ 1200s and one JBJ ??? its the one that pushes about 600 gph through dual nozels.
If I could get Tunze's for cheeper than a closed loop I'd consider it but I'm doubtful about that.
What are eductors?
