Have the moonlights on(blue 5% or something), so it looks really really blue and the angle of the one picture makes them look crooked but they really look nice. Have had a lot of compliments vs. my old tank mounted t5's. Used a plumb-bob, measuring tape, and wax marker to make sure it was center on tank then just adjusted the wires with a level to make sure it was straight. Great customer service from reefbreeders when I ordered and great light, really happy with it.
If you drill holes in the ceiling over the tank a good trick is to put a hole in a paper plate with your bit and put it through there when you drill the holes. No plaster/drywall in the water, and no hassle of covering the tank