ppm Charlie
Well-Known Member
I am working slowly to get absolute control my grow humidity and temp. It takes work and observations to get a system exactly right. Sounds like to got it solved.Here is what I do for VPD for the past 6 years.
First two weeks I am at 78-82⁰ and 75-80% humidity.
Weeks 3-8 I'm at 78-84⁰ and 65-70% humidity.
First week in flower I go to 77-80⁰ and 60-65% humidity.
Second week I go to 76-78⁰ and then each week until harvest I drop the humidity by 5% while keeping the temp between 75-77⁰ until harvest.
Last week or so I'm in the 30s for humidity.