Humidity higher than I would like

Hey guys.

As some of you know I live in CO where its very dry. I have a pretty full tent right now and I did a watering for everybody yesterday. I’m noticing my humidity is staying in the high 70s into low 80s while my temp is around 73 to 75.

I can get the humidity down if I leave the tent door open a bit but itll climb back up pretty fast and thats with 2 fans.

The plants seem healthy but I keep reading that is too high. Thought’s?


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It will eventually lead to sweating in environment. That is the precursor to mold. Definitely want to keep it check. It can ruin everything pretty quickly. I have to run a dehumidifier and fans 24/7.

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Should i keep the tent cracked till i can get a dehumidifier?

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Greetings,
No problem on cracking the tent flap. Just watch out for bugs coming in.use your bottom vents. Also turn your ventilation motor up on high as well. You got a bunch of youg plants they will not mind a little higher levels. Amazon is where i got my bedroom dehumidifier.

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As @SolomanGrundy said. Might see if you can strike a balance between lung and grow area. Definitely watch for critters.

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Adding a little more heat will bring down rh a little too. I run closer to 80 - 82 F

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Holy :poop: @Africanplainstrain you got yourself a full house going. I definitely want to see what happens in the end.

I wouldn’t say your plants are in any immediate danger. Keeping your tent open keeps the humidity down I would keep it open. Good air flow will assist.

A wise man once told me. Invest in three things if you’re going to grow.

1.) a good light
2.) a commercial dehumidifier
3.) commercial humidifier

It shocks me how many people grow with no dehumidifier and have high humidity.

The smaller $59 dehumidifiers for the most part are a total waste of money. I say a 35 quart minimum and you’ll never worry about high humidity again.

Remember, your plants outcome is only as good as the environment you provide for it.

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Yeah I am running a pheno hunt right now hence the full house.

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I don’t think high humidity is as much of a problem during veg until high 80s to 90%and up. If none of your stems have signs of stem rot forming you are fine. In high humidity you almost never have to water lil seedlings. (Think to the ever popular seed domes in almost every seedling tip thread).

To elaborate on this, even if the humidity is high still, the vapor won’t condense in warmer areas. That is the start of problems; condensate.

Could have said it better than Sausage.
Especially at night. You want to stay well above the dew point. The tempature swings at night is when the condensate can rear its ugly head. If you stay on the warmer side you are golden.

Even if I had a dehumidifier all set to go in the tent or room, I would not run it till flip. Unless my seedlings had mold develop on the stems.

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Oops, correction. Could NOT have said it better than sausage. lol

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Just leave the tent open a bit or open up some of the vent holes in the bottom to allow more air flow through it.

If you don’t wanna mess with anything I would recommend moving as much air not only inside but maybe an inline pulling air out and another inline pushing air in the exchange of air and not just circulation will help more than I can explain!!

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Right on.

@Africanplainstrain Do you have an exhaust fan?

Yeah i have the exhaust pulling hot air outta the top with a small carbon filter and the opposite pushing in air at the bottom… Most people freak out and say its a bad idea or too expensive but in reality 2 good 50 dollar fans with electricity isnt much of an investment at all and u can never have too much air!!!
Hope this helps, Keep in contact lmk if u go a diff route