What are you guy's feelings on CO2? If you have access to fresh air would you even consider?
Nah. Co2 would be the last thing I would worry about.
1) Environment, environment, environment.
(Can’t say this enough.) it’s the most important thing in a garden. Your environment is off in regard to temps and humidity your plants will struggle with
transpiration and uptake of nutrients.
2) lighting
Get good lights no reason to waste time with cheap shit.
3) genetics
Good genetics will go along way
4) ph
If this isn’t on there’s no chance of not having issues
5) training
This coupled with the above will boost yields and nug size
6) Nutes
Nutes are nutes are nutes they all work it’s about figuring out when and what you’re plant needs.
7) co2
Really for enclosed environments not places where heat and air is being exhausted. Other wise horse sucking the co2 out. This is kinda the cherry on to per say. And it’s expensive to get the right shit to make it work well.