Some people like the brilliance of a 10k bulb, and use them with a 6500k You can find endless discussion of light spectrums on APC (probably Plantedtank as well). There is for example, a whole thread on the GE 9325K bulb I like to use along with a 6500K. I think, however, that if you really like the look of a 10k bulb, with another bulb, people have had good success growing plants. On Thu, Oct 22, 2009 at 10:29 AM, Shango Los <shango@shangolos.com> wrote: > > > > > > The sun is between 5500-6500K in its color temperature > > > Ok. This is interesting. So in a planted tank, why would anyone use a > 10,000k bulb? It would seem that even if I have a two bulb setup that > I would want to have 2 x 6500K and not use the 10,000K at all. Does > the 10,000 look better to our eyes or something? > > _______________________________________________ > GSAS-Member mailing list > GSAS-Member@thekrib.com > http://lists.thekrib.com/mailman/listinfo/gsas-member > _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member