Led lights for 17g

[Keysman]

Hi just got a led 100 watt led light

(http://www.guppysaquariumproducts.c...d-lights/100w-led-light-marine/prod_2135.html)

Now how long should I operate the lights for corals and Anemones
Should I have the blue and white on together or just run the whites for a few hours then then blue ty