Ok, I have a question about where is the best place is to locate my power heads. I set up consist of a 65 gallon aquarium, 2 1200 powerheads, a seaclone skimmer, Live sand (3-4 inches), around 40 lbs live rock, and a emperor 400. I have 2 Percula's, 1 Yellow Tang, and a BTA, 1 Pepermint...