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Rexer
Rexer
As big as your budget will allow. Keeping a low humidity level towards the end of flower is key IMO.
It'll also help reduce PM chances, and coupled with a fan can help create a great growing environment. Take a search on here for VPD, it'll give you a good idea of what you'll be aiming for. And remember, as the plants transpire, the RH will climb....I actually put a dehumidifier for my house inside the tent. Was great, reduced a lot of stress for the plants, and me.
Hunter401
Hunter401
@Rexer Thank you. Do you have a hygrometer? If so, would you recommend it to me?
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Rexer
Rexer
To be honest, to just check RH- a cheap dollar store one will be more then adequate, and is what I use.

If you want to use a dehumidifier that doesn't have a RH setting (some aren't that fancy), you can pickup an Inkbird RH controller (it can turn off/on humidifier and dehumidifier to keep things dialed in).

Also, Remember, unless your using fans to keep air movement inside the tent (24/7 is best), there can be pockets of higher RH (stagnant air around the plants).
Hunter401
Hunter401
I do have an oscillating fan coming, so that’s good news.

The Inkbird RH controller looks like a good idea to me. So, this will work with either a humidifier or dehumidifier if I’m reading it’s description correctly. It will sound an alarm if it exceeds or drops below the desired range of humidity, but does it then adjust the humidity accordingly?
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