That mr x guy is actually correct. I have t5hos at home but at work I take care of a pretty nice tank with white and blues but 90 percent of the time its just the blues on. I have aussie buttons, open brains, acans, even sps
, acros and birdsnest under these and they are growing at a very rapid rate. I've had corals from my marine biologist he brang in for example green spongodes that were brown from MH
and actually brightened up with a beautiful vivid color in 2 months just from blue leds. That's no white, just straight blue from chinese lights we were trying out. Also mr x talked about it filtering out before it reaches 25 feet. 100% true. Actually red or violet, get filtered out within just a few feet. Blue is the color that travels the furthest and gets most penetration, except for white of course.