[iBryant]

I gather the large amount of sand will serve as a deep sand bed, right? Arn't these supposed to be good?

I agree that you should start your running your lights. Minnor amounts (given that nitrates and phosphates are in check) of micro algee will also start to grow, diatoms and what not. Other, sand bed animals and bacteria will eat these and help the whole deep sand bed ecosystem start to work.

I little should