Ok, so in spite of not understanding the science & significance of VPD I do know how to follow the chart for the prescribed target ranges for the different stages of plant growth.
And while I have little problem hitting the target while lights are on, it’s when the lights are out & temps are lower that the correct range has become unsustainable for a few hrs.
I’m curious about what I should look for, anticipate if this continues, what adverse effects this can cause.
Any info, suggestions or light shined on any blind spot I might have in my approach will be greatly appreciated.
Thanks in advance! 🪴
Pic is to illustrate my setup.