I believe the tank is 21" deep. The metal halide is 442 watts. Right now all I want a zooas and frogspawn, but I am sure I will want much more later, so I thought it would be cheapest to go ahead and buy a metal halide...plus it will be best for the coral...Oh, and something else I want, a rbta...which I want to use a metal halide with. :jumping:
Oh, and thirdchaos, I was just wondering, Do you have any fish in your tank? I like the sandless bottom. (isn't it?)