so if I had 2 10K's and 2 20K's it wouldn't look funky? And I'd reap good growth? Up top, at the high points in the rock structure, I'd planned on doing acro's and other SPS, but there would also be a bit (not the focal inverts though) zoo's/shrooms down low, and LPS in the mid-high rock areas. Another big big focus are clams and brains on the bottom.
FWIW, I was hoping to not replace the 10K bulbs I already have, as they are new, and already paid for, so I was hoping to offset them with bluer bulbs in the other 2 light fixtures. But if that would look funky, or be less effective, then I'd shrug off the purchase of 4 brand new bulbs.