i have a 35Gal tank with clowns,PJ, blenny, shrimps and snails.oh and live rock and one anemone. I have a new metal lighting system 1 x 150w MH 20000k with 2 x T5 39w fluros and 2 x Blue LED. I needed to know how high does this light needed to be from the water. I had it about 5" from the...