SPS with T5 lighting.. how long?!?

[MarvinsReef]

I have been running ati aquablue special X2, blue plus X 3, KZ purple X1 on a 58 gallon for a couple of years. I have had various other tanks at this time and none of them (including MH) have produced the color or growth of the T5. I run all 10 hours, and two blue plus for an extra hour on each side.

hmmm.. I might have to try out adding another Special in there. I'll see how my current set up is for a few months. then, I'll experiment. thanks for your input. :)