greengoblin2014
Well-Known Member
I just put 5 critical kush beans into root riot cubes in my tent 4-5 inches away from a 125w cfl with an oscilating fan at the top of the tent. My question is do I need to turn my in and out fans on? I've got a humidifier and can boost the humidity to 90% then turn it off and the humidity stays high, also i have a device to measure co2 and can get the co2 up to 1800 ppm just by breathing in the tent, then keep it there as the fans are off.. Will this be ok until they pop? Do I need air exchange at such young seedlings? If it is ok when should I turn the fans on?