@Nick_James Thanks for the kind words. I have 6 power heads total 2 being mp 60's on the side with 4 mp40's spaced out 8-10 inches from eachother while also being approx 8 inches from the water line. At this position I have all the pumps running in reef crest mode at 100% meaning they vary from 10%-100% throughout the day. Over time ill program all the pumps to be in sync for gyre effects. Ill tank note this tank is close to 100x turnover which very little sand movement at the bottom which was my primary goal.