so im looking for a light fixture for my 30g long tank (36") pretty sure i am going to go with a t5 fixture with atleast 4 bulbs. heres my question. most of the ones i see are 2x 10k daylight, 2x actinic, and then some have the lunar leds. what is the difference between the actinic and the lunar led's? with fixtures like these, are you suppose to run all 4 bulbs during the day and the led's at night? kinda confused about this...