Im going to be picking up some more live rock for my 10g and was wondering if double power glos would be sufficient lighting. Would this be better for the rock, would it promote more growth. This is just a small setup till i make my 30g salt so i dont want to spend to much on this tank. I figured two power glos would be better than just a standard hood. I also might add a couple little corals in there. Thanks for anyone that can help.