Humidity levels

BigMoistDaddy

BigMoistDaddy

Well-Known Member
My grow tent has three different fucking humidity/temp levels every foot you go up it differentiates by 10%. The base of my plans were most the moisturize at is 65% but were the nugs and flowers are is only 55% but where the lights are it’s 45% humidity. I’m not sure if I should be worried or concerned or not Care at all since bud level is below 60%. Also no matter what I do I can’t seem to lower the humidity at base level
 

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BigMoistDaddy

BigMoistDaddy

Well-Known Member
Kerowacked said:
I use my fan at the floor, cooler air too. But lights are still the lowest humidity level.
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Same I have two fans at the bottom and one mid-level all pointing up to the exhaust fan. The one fan is by an open flap at the base where cold air from my air conditioning goes right into. And then it blows all to the top where the exhaust fan goes right out through my bathroom exhaust fan. I also have a dehumidifier at the base level that fills up every four days
 
W

waterproof808

Well-Known Member
BigMoistDaddy said:
Which meter should I go off then? the big one of the top that only says 47% humidity
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yeah, I'd just use the big one. The placement directly on top of your lights might not be the best spot to take a measurement, the reading might be a little offset by the heat of your lights. Humid air rises
 
twentyeight.threefive

twentyeight.threefive

Well-Known Member
BigMoistDaddy said:
My grow tent has three different fucking humidity/temp levels every foot you go up it differentiates by 10%. The base of my plans were most the moisturize at is 65% but were the nugs and flowers are is only 55% but where the lights are it’s 45% humidity. I’m not sure if I should be worried or concerned or not Care at all since bud level is below 60%. Also no matter what I do I can’t seem to lower the humidity at base level
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Put one hygrometer in your tent at canopy level. Use that one as reference along with your plants to make decisions.
 
Rurumo

Rurumo

Well-Known Member
The RH will vary throughout your tent and it gets especially high beneath, and inside, the canopy. Like Kerowacked said, it's always a good idea to keep a fun running beneath your canopy (and above of course.) Pruning off some of the leaves beneath the canopy is another great way to reduce RH-you can pretty much take off any leaf that is shaded by the canopy, and the weak growing tips that fail to reach canopy level. Some moderate defoliation will drastically reduce your rh spikes. I've had good luck with accuracy from various Inkbird hygrometers-including the small ones they make that fit in Jars for curing.
 
Jjgrow420

Jjgrow420

Well-Known Member
They're called micro climates. If the temps and humidity are diff it can cause issues like mold. (Dew points etc) Air flow is key. I primarily read at canopy level, as that's what I'm trying to grow/maintain. Who cares what the reading is at the bottom of the tent at pot level. (If there's adequate air flow) It changes constantly as you water and it dries. It matters at and inside the canopy, where the buds are.
 
BigMoistDaddy

BigMoistDaddy

Well-Known Member
Jjgrow420 said:
They're called micro climates. If the temps and humidity are diff it can cause issues like mold. (Dew points etc) Air flow is key. I primarily read at canopy level, as that's what I'm trying to grow/maintain. Who cares what the reading is at the bottom of the tent at pot level. (If there's adequate air flow) It changes constantly as you water and it dries. It matters at and inside the canopy, where the buds are.
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That’s the only reason I’m not worried is because I have adequate airflow all my leaves are blowing in the wind
 
Budzbuddha

Budzbuddha

Well-Known Member
No need to overthink areas in tent - with open zip doors ambient temps come into play. I literally just put this meter ( outside tent or on floor of tent ) and that’s it. I go by the ambient temps when I’m running door open for lights on time , also air exchange.


Placing any meter on bare panels or boards will read the radiant heat and also when placed in upper ceiling area of tent where heat will rise.
Just get one of these .WALFART.
5ECF0990-E5BD-4280-86CC-79720A08B17C.jpegD749760C-4BDA-4EF6-94F1-C457BC1D8D00.jpeg
 
PopAndSonGrows

PopAndSonGrows

Well-Known Member
Get a bluetooth Govee. Trust me. Super cheap.

The wifi one is cooler because you can monitor from anywhere but the Bluetooth one is way cheaper.
 
G

GreezzyGuy

Active Member
BigMoistDaddy said:
My grow tent has three different fucking humidity/temp levels every foot you go up it differentiates by 10%. The base of my plans were most the moisturize at is 65% but were the nugs and flowers are is only 55% but where the lights are it’s 45% humidity. I’m not sure if I should be worried or concerned or not Care at all since bud level is below 60%. Also no matter what I do I can’t seem to lower the humidity at base level
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put a thermometer at the top and the bottom of your grow area, and i bet you will find the reason for your fluctuation. in humidity.
 
visajoe1

visajoe1

Well-Known Member
I would say you dont have enough airflow then. fix this.

digital thermometers typically differ in readings also, but only a degree or two.

use the one on top with the prob at canopy level. this is the only air temp that matters in the tent because you can get an idea of what leaf temp is. leaf temp and rh is vpd, and is the real indicator of how happy a plant is
 
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