Originally Posted by
schminksbro
I have found corals to grow and color beautifully under all blue and royal blue. Most of the other colors get filtered out by the water in the ocean. Most corals likely never see anything but blue and violet in the wild. I get plenty of par from my AI sol blues and I only run blue at 50% and Royal Blue at 60%. White at zero. That's over the acro tank. Corals may acclimate to other colors of light but most don't need it. Everyone has a different personal opinion of the look that appeals to them. IMO corals just look better when you can see their colors. White just washes them out for no benefit that I can find. Besides, I like basking in The Blue Glow:)