Thanks, it is a fair amount but there is quite a bit of space behind the rock also. I've been thinking of removing some to sump and re scaping to add better shelving for corals.
thanks guys, only been in this tank for about 3 months. the coralline is finally starting to grow on the glass. i have more growing in my sump right now, stupid urchin keeps eating it all.
Love my ati. Prob could have gone with the 4 bulb but the 6 is going to be perfect for when I get my 120. I really enjoy the dimmable for dusk/dawn, especially when if first turns on and turning off. Tank gets a shimmer with only two bulbs at low power. From what I've heard the dimmable sucks if you want to put it on a controller.