Further I am
wondering that perhaps changing my bulb to a 250W XDE 20,000K HQI may
help the coloration of the SPS. Any thoughts?

Read the end of this article ...
http://www.dynamicecomorphology.com/steveletermfm01.htm

And this full article ...
http://www.reefs.org/library/talklog...ee_060202.html

jc