I have a 9'x5' Shed built. This is outside.
Inside the shed, I have a 3'x3' Gorilla Grow Tent with 4 3gal plants.
This tent is venting to the outside (in and out) bypassing the shed.
Since it's "outside", then I would assume I need to add CO2? (California Bay area - temps around 60-80)
I...