SPS Placement

I have a 29 gallon Biocube, with a 150W MH Sunpod (Phoneix 14K bulb). I've recently added a ORA green birdnest and a pink/purple polyp birdnest, to the tank about 2 weeks ago or so. They both have great polyp extension, but the bodies seems (possibly the polyps too) seem a bit faded from when they were first added. The Sunpod sits about 6-8 inches above the water line and the corals are about 3-4 inches below the waterline, with the green being directly under the bulb, and the purple off to the side a bit. I'm curious if these guys prefer a little less light, little less flow, etc. Or is this normal coloration. I'm at work so I can't give you all the specifics on the parameters, but I have  good regimine that keeps the Ca around 400, Alk around 10, SG 1.025, temp tops out around 80 when the halides are on, but can get the specific numbers if needed.

I do have white tips from growth, but the overall body color just isnt as dark as when I put them in the tank. Not bleaching or RTN, just lighter.

Also, it could be the change in Kelvin rating, They were probably under 20k bulbs, with more lumens. I know that some corals I have bought have taken a few months to readjust to my system.