How do you maintain your humidity? Any humidifier recommendations?

[Saxer]

Finally have my first tent set up, and am about to pop some seeds. My humidity and temp sensor (AcuRite) shows a constant temp at 81 and humidity at 31. I would prefer that humidity at least over 40 (and I guess ideally at 55?), I also assume once the plants get bigger the humidity will shoot up.

This is a super soil grow using Stonington Blend from Coast of Maine. Two plants each in 7+ gallon Air-Pots watered with a Blumat drip,

How do you maintain your humidity? Should a bucket of water suffice or should I buy an actual humidifier?

Thanks again for all your help!

 

[Big Sul]

Fully water your pots and turn exhaust fan off. If still low rh, buy a humidifier.

 

[CannabisMingus]

I have bought, used and/or retuned many humidifiers. The two I recommend (non-digital for use with controllers):
- Amazon.com: rapdrop Humidifiers for Bedroom (6.5L), Ultrasonic Cool Mist Humidifiers for Large Room, Home, Plant, Quiet Air Vaporizer with Night Light, Easy to Clean, 45h Work Time, Auto Shut-Off (Black) : Home & Kitchen
- Amazon.com: Honeywell HUL535B Filter-Free Cool Mist Humidifier, Black – Cool Mist Humidifier for Bedroom, Home or Office : Home & Kitchen

I have been relatively happy with these units FWIW. YMMV, IMHO, etc. Maybe I didn't catch it, but how big is your tent or grow space?

 

[Suki]

Fully water your pots and turn exhaust fan off. If still low rh, buy a humidifier.

I wouldn't suggest turning it all the way off, but if it has speed control I would turn it down as low as possible. Having your pots evenly moist throughout will help keep the humidity up, and as the plants grow and begin transpiring more and more the humidity will continue to rise, which as they enter flower will be when you need to start turning it back up some in order to keep the humidity down. Ime, I've had no luck trying to chase humidity with a humidifier. If you need to you can cover the seed/seedling for the first couple days to keep RH up around it, but I would remove it after like day 2 to keep the seedlings from dampening off. Your VPD is going to be a bigger factor than just the humidity by itself.

 

[DCLXVI]

There are two types of humidifiers out there. Evaporative and ultrasonic.

Decide what features you like or need. I wanted a top fill I could pour tap water into. Ultrasonics can vaporize the minerals in water leaving a white dust on everything. They require distilled water to prevent it.

Evaporative you can use tap water. They don't humidify as well but cannot add more moisture than the air can hold.

I use this guy for simplicity in a 2.3x2.3'

Honeywell HCM-710 Easy to Care Top Fill Humidifier White

The Honeywell Easy to Care Top Fill Humidifier is an excellent addition for those searching to secure a healthy and pleasant breathing environment for medium sized rooms. This humidifier by Honeywell is incredibly easy to use and utilizes a top fill design that allows for seamless filling. This...

www.honeywellstore.com

 

[Saxer]

I have bought, used and/or retuned many humidifiers. The two I recommend (non-digital for use with controllers):
- Amazon.com: rapdrop Humidifiers for Bedroom (6.5L), Ultrasonic Cool Mist Humidifiers for Large Room, Home, Plant, Quiet Air Vaporizer with Night Light, Easy to Clean, 45h Work Time, Auto Shut-Off (Black) : Home & Kitchen
- Amazon.com: Honeywell HUL535B Filter-Free Cool Mist Humidifier, Black – Cool Mist Humidifier for Bedroom, Home or Office : Home & Kitchen

I have been relatively happy with these units FWIW. YMMV, IMHO, etc. Maybe I didn't catch it, but how big is your tent or grow space?

Thanks, CM! Checking out those humidifiers now.

I have two 2x2.5x6'7'' Gorilla LiteLine tents side-by-side with the bottom side vents connected; growing a single plant in each. This way I can have two different-sized plants or even disconnect the vents if I want to try a photoperiod.

I guess that would mean my total grow area is 2x5x6'7''

 

[Saxer]

I wouldn't suggest turning it all the way off, but if it has speed control I would turn it down as low as possible. Having your pots evenly moist throughout will help keep the humidity up, and as the plants grow and begin transpiring more and more the humidity will continue to rise, which as they enter flower will be when you need to start turning it back up some in order to keep the humidity down. Ime, I've had no luck trying to chase humidity with a humidifier. If you need to you can cover the seed/seedling for the first couple days to keep RH up around it, but I would remove it after like day 2 to keep the seedlings from dampening off. Your VPD is going to be a bigger factor than just the humidity by itself.

Thanks Suki! Will cover that seedling for the increased humidity; I like simple!

 

[Saxer]

There are two types of humidifiers out there. Evaporative and ultrasonic.

Decide what features you like or need. I wanted a top fill I could pour tap water into. Ultrasonics can vaporize the minerals in water leaving a white dust on everything. They require distilled water to prevent it.

Evaporative you can use tap water. They don't humidify as well but cannot add more moisture than the air can hold.

I use this guy for simplicity in a 2.3x2.3'

Honeywell HCM-710 Easy to Care Top Fill Humidifier White

The Honeywell Easy to Care Top Fill Humidifier is an excellent addition for those searching to secure a healthy and pleasant breathing environment for medium sized rooms. This humidifier by Honeywell is incredibly easy to use and utilizes a top fill design that allows for seamless filling. This...

www.honeywellstore.com

Thanks, DCL! Didn't consider how easy a top-fill humidifier would be. I really dig the one you posted; gonna give it a look!

 

[Saxer]

Fully water your pots and turn exhaust fan off. If still low rh, buy a humidifier.

Sul, I tried your method yesterday and the humidity is still low. Gonna take your advice and buy a humidifier. Thank you!

 

[CannabisMingus]

I have two 2x2.5x6'7'' Gorilla LiteLine tents side-by-side with the bottom side vents connected; growing a single plant in each. This way I can have two different-sized plants or even disconnect the vents if I want to try a photoperiod.

Very cool. Smart thinking. It may be difficult to control independent RH and VPD, but easy enough to fix.