The lighting on this tank is as follows ARO Ballast 2-6' VHO actinics, 3-Electronic 250w Galaxy Ballast, 3-20k single ended Radium bulbs. I have 1 Iwaki RL70T for the return pump. I have another Iwaki RL70T on the closed loop with a Tidal Power 4 way which is similar to the OM 4 way,this then outputs to 4-3/4" seaswirls. The Skimmer is a PM Bullet XL2 wich uses a Iwaki RL70T to feed the Beckett. The sump is a 65 gallon custom tank which is topped off by a 30 gallon fresh water reserve tank using a reefanatics ATO. The brains of the system is a RK2 which works for what I need. Here is a couple of pic's that are of the Tidal Power 4 way and The Ballast mounted in the left door of the stand for a space saving clean look.