i'm in the works to setting up a closed loop for my 110 gal RR , i was going to have 2 drains in the back, about 4" from the top and 2' in from the sides, these will drain into a coralife 1270 gph pump then back to a manifold on the top of the tank that a oceanmotion wavemaker will control the flow, i was considering having the exit tubes in the 4 corners to create a wave motion effect. any other ideas would greatly be appreciated.