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that’s very interesting. Everything I’ve seen chart wise increases the VPD. Do you think running lower temp but in the ideal VPD 1.2 is better than running warmer but higher VPD using Co2 enrichment with both?

Hiya chronic, I hate to be a newb (which I am with hydroponics) I WAS a soil man. what brand sells this zone everyone likes? Its just I searched it, wasn't very helpful. I'm up grading to a amazon areo system, would zone be a appropriate root stimulator? I was also looking at Canadian xpress...