Light photoperiod length help

[Spar]

I am currently running my 450g as a fishless tank. I feed the coral via blast every two days. (these two points in case it matters in the answer).

My lighting is:
4x 250w Radium MH
4x 39W T5 (blue and purple)
2x 160W Super Actinic VHO

What would you recommend my photoperiods be for each for primarily SPS?

 

[Crabs McJones]

The metal halide should be on an 8 or 10 hour photo period, the leds should be on a 10 to 12 hour photo period. So you could do the leds as a "ramp up and ramp down" effect for the halides.

 

[Spar]

The metal halide should be on an 8 or 10 hour photo period, the leds should be on a 10 to 12 hour photo period. So you could do the leds as a "ramp up and ramp down" effect for the halides.

I don't have any LEDs unfortunately. MH, T5 and VHO only.

I have my MHs on 5 hours right now, I will up those a bit. The T5s and VHOs are on 10-12, so I will leave those be.