lighting behaviour of reefers

[muck]

40 Gal 36" x 15" x 18" approx.

36" AquaLight 2-96W PC
1 - 10000K
1 - Actinic

The actinic is on from 9am - 11pm.
The 10000K is on from 10am - 10pm.

I have a mix of SPS, LPS and softies. Everything is growing happily in my tank. My lighting is ok for what I have. I would like to get more into SPS and Clams though. But that is why Im going to set up another tank. I would definately like to have 250W MH on the new tank. Then this tank will be mostly softies and some LPS corals.