lightings question - T5s

Hi all,

Right now i am running 2 fixture of 2 x T5s for my tank. I am using 1 x blue, 1 x 6500k, and 2 x 10k, all aqualight tubes. I feel that the lights are a bit yellowish when i switch on all 4 of the tubes.

May i check with you guys that does reefers usually keep one fixture with only blue tubes? Also would my lightings be enuff for LPS if i use 2 blue and 2 white tubes?

Thanks in advance