I think I run my lighting way too high of intensity causing lots of brown in my sand. What does your light schedule look like on that RBPV2 (I have the same thing over my 6ft wide 125G)
I used to run it so the tank nearly glowed - it looked so good, but now I am running it with barely any because I am afraid (which seems like a waste of $ now)
Thanks!
I run my lights really high but I also hang them very high. Currently I run them 18" from top of tank so about 19.5" from water surface.
I can share my schedule sometime when I'm back at a computer. I posted it in the reefbreeders forum here if you want to go looking in the meantime.
Currently I peak at 30, 30, 100, 50, 100, 100 for about 4 hours mid day. This gives me right around 200 par at the sand bed.