Dutchman wrote:I'm no expert at that level, but I am certain that with common stocking levels you can get 10 to 15ppm of CO2 and perhaps more if you save the CO2 produced at night. Otherwise, measure pH and KH mornings and night and work-out the corresponding CO2 levels (plenty of tables on the internet) and find out.
5000 to 6500K is a good light temperature. 10000K is NOT recommended. You can also combine different tubes to give an optimised K-rating. I can help you with that.
Thanks Dutchman! I think that I'm going to try to keep the bulbs to 6500K. How exactly could I combine different tubes to get an optimised K-rating?