Lighting For 75 Gallon Planted Tank

I used to have saltwater so I like the blue look. I personally would go with 2 6500k and 1 10000k. but others might disagree because 10000k does not grow plants as well as a 6500k.
 
1- 10,000k and 2- 6500k
 
I received my fixture today and was wondering would you run the two 6500k bulbs the whole time lights are on and turn the 10,000k for a couple hours for midday burst or would you run one 6500k and the 10,000k the whole time the lights are on and turn the 6500k on for a midday burst?
 
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