Your corals are looking pretty good and it looks like your feeding regime and lighting adjustment are working. When I built my LED lights I went with a full spectrum setup which utilizes royal blue, blue, OCW, warm white, and 2 different wavelengths of violet. The colors pop is due mainly to the blue/violet end of the spectrum. I run my whites near 25 to 30% for color balance. Initially, I was running my warm whites too high and the colors were present, but not as vibrant as when exposed to a more blue violet spectrum.................Jim