Although I am new at reefing, I have the nova extreme T5s that do not have individual reflectors. And all my corals that I have in there are growing just fine, although I do not have any SPS yet. Pretty much all of my corals are at the bottom of my tank, and I do feed my tank everyday. So to be honest I don't know if its the feeding that is making them grow or the lights. If you have the money then I would suggest getting the individual reflectors. But if you are like me and want to save wherever you can so the wife doesn't complain too much. I am buying these lights for my new tank. If you do decide to buy these lights though, I think you would have to open them up to run an extra power cord, because they only have one. Can't control much lights with one power cord.