[mseepman]

I agree with FitoPharmer above that when you increase the K on your bulbs, the corals will look better visually, but will grow slower. You mention that you have actinics...in what form? Do you have PC's or T5's or T5HO's...the difference between these can make a lot of impact on how your corals will grow and how they will color.

I'm only a beginner in the SPS side of things, but I think if you are looking for colors to improve, you might want to look at some other things than just light...maybe what they feed on, how good your water is, your flow, etc.