Or_Gro
Well-Known Member
VPD is my current struggle as well - my main humidifier for the room sits outside the tents - the CMH light is just so damn hot it makes it near impossible to get VPD right. I have actually thought about opening part of the door to my 2x2 and letting more air in to cool the tent more - i'm still exceeding 80 at times.
It sucks, but if you can’t solve the problem your plants will not be healthy, their radiator hose and carburetor is blocked...
Two variables in vpd:temp and rh%. 80 is not the issue (tho it is a tad high, imo, for cmh, but not for qb)...humidity is the more important issue...figure out how to get more moisture in the air. Maybe a vaporizer?
