When should I set the timer for the CO2 ? During the dark cycle or during the light cycle - or both?
Micheal Kelso Well-Known Member Jun 12, 2007 #1 When should I set the timer for the CO2 ? During the dark cycle or during the light cycle - or both?
videoman40 Well-Known Member Jun 12, 2007 #2 Your plants will utilize the co2 during lights on. Good luck!
