depends on how high from the coral it is really.Holy cow! That's blasting! I put my lux meter on my reef suppliers tanks and he was running about 5-6k only and grows SPS like crazy! I'm so confused
And one of things Ive been really looking at (and some folks hate me for) is a lux par test will show intensity to par ratios. A pure white channel can be as much as a 40 or lower constant.



