:stoned: Could have been tonic water. Was a few years ago.

In a large growroom (approx. 1000 cubic ft) with plenty of ventilation, would adding a CO2 set-up be worth the investment?
Rusty Trichome Reviewed by Rusty Trichome on . How to Co2 cheap? I saw on "I Grow Chronic" on youtube the guy sprayed his plants with carbonated water. Doea anybody else know about this or a better way?? If this spraying carbonated water thing does work does neone know what kind of carbonated water i should use?? ie - tonic water, club sota, sugar free, sodium free? Rating: 5