I love the look of my 50g reef with just the Actinic lights on. I have a Coralife 192W (2 96w bulbs) power compact fixture. I have one actinic buld and one 50/50 bulb. Is would there be a problem with my fish or corals if I only used actinic bulbs? Are there any other bulb combinations I could use to get a nice blue color?