Brad is quite correct. You do not NEED actinic supplementation at all IMHO, but it looks a lot nicer to our eyes.
I, for instance have a 50 gallon tank with a 2x96W Coralife aqualight. One tube is 10000K, and the other is a CSL actinic (I hate the Coralife actinic). The timer is set so that when I am home both lights are on. When I am away at work only the 10000K is on.
I have a few fish, and softies, zoos, and what we called LPS. I will add a picture to this post showing the tank with both lights on
