I have mostly soft and LPS
corals in my tank and use VHO
lighting. I use 2 super actinic and 2 50/50 bulbs. I use a retro fit system and you can see it right here
As you see I dont use a canopy. I capture alot of my lighting using URI bulbs that have internal reflectors and then the dome reflector to capture any stray lighting. Runs much cooler than a canopy. We have a pretty good discussion on lighting at this thread if you have not seen it yet.
varying bulb types in a reef aquarium