For my new tank, I have a bit of a flow dilemma. I have 4x mp40qd and tank is a standard 4ft 120 gallon. I would really like to avoid putting the pumps on the ends to avoid observing the viewing. I am thinking that the pumps spread across the top back to create a bulk water movement may be a viable option. If in sync they can push the water forward across the top, down and back. The tank will be BB.
Other thoughts welcome