That's a great idea and I will remember it. Sounds alot cheaper than the hydor wavemaker I seen are the LFS
. I think I have them where I want them now. I somewhat used your approach convict and I felt the current with my hand from each powerhead and the brush right into each other and the front and back still has decent movement. Thanks. No sand is moving and all my corals are in good standing. The least flow is right up front on each side kinda. I moved my ducan there and it slowly waves around and has plenty room to grow. I think I am good to go!