Lighting for a 125 gallon, FOWLR tank?

[rook]

What is suggested for a 125 gallon FOWLR? Keep in mind although the tank is 22" deep, I will have 6" of sand and a 1" top gap so the water will only be about 15" deep. I do not plan on any corals (I have a separte reef tank) but I do plan on some type of algae or sea grass to grow in the tank to feed the grazing fish.

 

[tru conch]

it really doesnt matter with a FOWLR what lights you have. personally i would look at pcs for a few reasons. the cost (operation, replacement bulbs). they provide a bit of light, and this will help your algea grow. also they are brighter than NO bulbs and will bring out the fishs' color more. hth.