Starting Out

[Jaws]

I heard you're supposed to use a lower K bulb if you want your corals to grow faster. When you're first starting to build your reef tank, adding frags and different colonies, should you start with 6500K bulbs to help them grow faster? Right now I have 2 250W 10000K Geismann double ended bulbs and 1 250W 13000K Geismann double ended bulb. Will those work just as good or should I start out using a lower K?