Blue are important part of your lighting for coral health and for visual appeal. Blue make the ramp up/down more realistic. Everyones photoperiods are different. Mine is as follows;
	 
	12 hours on/ 12 hours off
	9am blue leds on 
	11am white/actinic t5 on
	1pm full spectrum leds on 
	3pm white t5 off
	5pm actinic t5 off
	7pm full spectrum leds off
	9pm blue leds off