Another idea I thought of today.... I am going to make a type of light rack out of PVC pipe. I dont know what size yet, since I dont know how large the reflectors of the T5s are going to be. I'll just use the weldon to assemble the fixture, maybe teamed up with some bolts and nuts, to be sure. After that, I am going to cut enough of the PVC pipe, maybe leaving 60% of it, at the angle where the reflectors will point the T5s into the tank. I'll have 2x48" T5s length wise, then 4x24" T5s running depth wise, one on each side of the Lumenarcs. I think this will work very well. if it doesnt, oh well, PVC is pretty cheap. It sounds like a sound idea in my head, I guess we'll see how it works.