Yes they will work just as good if not better than the 10K W/ actinics. You will have better growth than you will have with the blue bulbs for sure. The Actinic are just about worthless for PAR, (light available for photosynthesis, a measurement of intensity in the spectrum corals use) and using them is "mostly" aesthetic. But in my opinion your new setup will look nicer, just won't have as good growth, which may not be important to you in a nano.
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6700k bulbs 
