I run a 4X24w ATI sunpower on my 60g cube (24x24x24) and keep a ton of SPS in it. Here is a shot from my store profile done a few months back. I have 10 different types of montipora, 3 birdsnests, 2 acros, 1 stylophora, plus lower down, favias, chalices, softcorals, micros...dont believe for a...