When is the best time to have the co2 to come on? Lights off or on
iFeeLikeDying Well-Known Member Jul 17, 2008 #1 When is the best time to have the co2 to come on? Lights off or on
Garden Knowm The Love Doctor Jul 17, 2008 #2 Lights on... and if you only have enough for ONE cycle.. do it during the flowering cycle..