MON>>>Co2 uptake by root's is small, in comparison to O2 oxygen. Co2 is mostly used by the leave's to photosynthisize, taken in by the stomata, Co2 is for us small timeer's!!Co2 Boost bucket's do the job!! I ghetto grow 4X4 square space..1000 watt HPS and three 26 watt cfl's (UVB REPTILE LAMPS...