I only use supplemental CO2 (1100-1200 ppm) in my flower room. I do not supplement CO2 above ambient (400-500 ppm) in my veg room because I want my plants to produce more stomata per leaf in veg. This will help boost growth through the transition to flower when they’re introduced into the flower room’s high CO2 environment. The number of…

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This is the exact opposite of nature. Limiting root space is not a good thing. Over-watering is always the problem. Not the container size. I’d never grow a seed or clone in a solo cup for any amount of time.

Damn Straight!