I would say focus on that white light a lot less and focus on the blues, white light is the combination of all colors which means there is only a little bit the corals will actually use. If im not mistaken corals actually use light from the blue wavelength much more than any color so crank up the blues on the LED's (slowly). Right now I only run the whites at 30%, and ill probably keep it that way as I turn the blue and royal blue LED's up more and more every week. what im saying is supported by the graph that was posted earlier on because if you noticed there was a peak at the blue spectrum.