Got all my flow figured out. This is what I have Mag 5 feeding SCWD alternating between two stock returns on all the time. Mag 9 feeding SCWD alternating between sets of output heads under each pile or rocks on from 11am till 11pm. MP40 located on the center of the back wall in short pulse mode on all the time. Two Koralia 1400's one on each end controlled by Reefkeeper switching back and forth in one minute intervals on from 10am till 12pm. The flow is very random, what do you all think?