[canadawest]

It will be the regular ballast that I have available to me. But I do like the ability to run different lamps even though I will likely go with the Iwasaki 6500K lamps.

I will be supplementing with two or three 48" VHO actinics, as well as the dual 250W MH lamps.

George, you have run both 6500K and 10K lamps. For coral growth which do you prefer? Based on optimum coral growth and knowing my supplementation, which K of lamp would you choose?

Darren, if 10K lamps were the same price as Iwasaki 6500K lamps, would you switch?

I have read that corals tend to have better growth under 6500K lamps than higher K lamps and that clams also prefer the full spectrum of 6500K lamps. Anyone care to comment on this?