I have a Waterbox 60.2 Marine X and was wondering what would be the best powerhead and placement. I am looking at 2 Nero 3s or 1 Reefwave 25. I was thinking the Neros can go on the sides of the tank, one flowing behind the rock work and the other mounted on the opposite side in front of rock creating a swirling motion. The reefwave I was thinking of mounting vertically with one end flowing behind the rock and the other end facing the front of the tank. My rock work is about 8" from the water level.