Humidity; how much

Need some imfo about what things that you can do to lower the humidity. I read that various stages of growth requires different levels, but how do you lower the amount? thanks

Fan leaves transpire moisture into the grow space, so removing them will usually lower the humidity. I would not remove leaves that are getting direct light, only lower in the canopy. I would go slow.

Alternatively, giving the plants less light will lower transpiration, but at the expense of yield (but not necessarily efficiency).


Seedlings / clones: 60-70%

Veg: 50-60%

Flower: 40 - 50%


Thank you, I was thinking the same about the lower canopy leaves also. But your correct about going slowly. thanks again this hit is for you.

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I don’t worry. Mother Nature doesn’t measure RH. And I’ve had zero problems.