I guess I am the only one on Reef2reef!? Okay.:tongue::tongue:. So it was a try! Well here is a nugget. So far I run the purple plus and blue twice as much as the cool whites on this bad boy. For example I run the center 14k aqua special led at 40% and the 8 cool whites at 40%(same channel), and the blue(channel 2) and purple(channel 3) at 80% intensity. So far the corals are happy with this light. I upgraded from a par 38, so adjustment was very little. The purple plus on this intellisun really makes the corals POP. I just have the purple plus running at 5am for starting up, at 1%, then slowing adding the other leds at 6am and the corals look cool!! I dont have a par meter, but so far the eye ball test is showing me that the corals are responding nicely. I think though, the light change has caused some algae growth. That is being monitored. The center 40 watt plus 8 surrounding cool. I am tinkering with the light. I think in the end that I will always operate the blue and purple at higher percentage than the whites as long as I am on the 30 gallon tank, but I think that combo could change with a bigger tank!!