New tank setup

[fishboy]

Hi, I'm setting up a new tank and need some ideas on lighting/skimmer.

Tank will be 72X30X30, viewed on three sides, deep sand bed and sump. Mostly soft corals as sps are hard to find in my area.

I'm thinking of 3 250w mh run off electronic ballasts and 4 36" vho actinic's. Would this be enough metal halide for the tank depth? Any comments on the XM bulbs as opposed to Hamilton/Ushio? I'm think 10K spectrum.

Looking at the AquaC EV-240 as a skimmer. Anyone have any experiance with AquaC skimmers?