I had good success with a 10 gal
tank using two 36w PC
lamps. What kind of lighting you put on the tank really depends on what kind of corals you want to keep. If you intend to have SPS
corals, I would look at the 96w quad. If you intend to have soft corals, zoanthids, shrooms
, ect..., then I think 96w would be too much.