so let me jump in here then. my ultimate goal is to have a clam or two, maybe an anemone or two, and the rest of lower lighting corals on the sides on banks... scroll up, will I have enough lighting to maintain clams??? i intend on putting the high light corals/clams in the center of the tank directly underneath the MH, while the lower light corals to the sides... I have a 75 gallon, 21 3/8 inches in height, 18 1/2 width, and 48 long