FWIW, I replaced my Phoenix 14K with Reeflux 12K. On HQI ballasts (as I have) they are very white, on electronic ballasts (my friend runs these) they appear more blue. I prefer the Reeflux over the Phoenix for usable bulb life and color.
If you have an e-ballast I suggest the Reeflux 10K. I use one of these on an e-ballast over a frag tank and it looks great. Growth and color have been exceptional.
If you want something more blue, I have used and really liked the BLV 20K. Nice even color that held for the 4 months (I took the tank down) that I used it.