I am about to order a ATI 36" 6x39W Powermodule T5 High Output Fixture but am unsure what bulbs to order. The light is going on a 57 gallon tank that 21 inches deep. The tank will primarily be LPS (scolymias, acans, Cyphastrea and some montipora) and have some type of sand bed. I do not want to make things complicated and have 6 different lamps. What bulb combination (brand and name) would you recommend?