Source of additional CO2

Anyone see any drawbacks to keeping a 5 gallon fermentation Jug in the grow tent. There is a continual stream of CO2 escaping from the air-lock

You’ll need a closed environment and a LOT of lighting, as well as higher nute levels and temps should be a little higher. Without these factors extra CO2 won’t offer much. Ambient CO2 is sufficient for cannabis.

Be careful. CO2 in a closed environment where CO2 PPM is above 1500 is dangerous for humans and pets.


Yup I wouldn’t even run passive c02 in anything short of 30 square feet and even then you can get away with just having a robust intake and exhaust system