I am soon going to replace my metal halides with the new Orphek Nilus 24" LED unit. However my wife is not pleased with my original plan to hang fixture from the ceiling. I would love to hear different opinions on how one would hang above my 55g reef tank. If you are not familiar with the unit take a look at 24 Inch Orphek Power Reef PR156 LED Light Fixture. Nilus is the newest version that has a dimmer. It is 24" long and my tank is 36" long. Love to hear your creativity.