im an experienced grower with 7 harvest under my belt and ive always turned my co2 on the second week of flower but i wanna here what you guys think about co2. i just bought a sentinel co2 ppm controller (very expensive) bout to try it out
You are on the right track. Turning it on after the stretch is a good idea.
You could also use some plant growth regulators to stop the stretch and turn on the co2 now.
I have the same unit hooked to a cap gen-1eng with 4 burners. BONG.
