The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
скажитье пожалуста Со2 как �...
tutankhamun
started grow question 5y ago
скажитье пожалуста Со2 как проверить воздухе сколко от Со2+ппм ?? научитье менияа болшое спосибо иесли научитье аднаво тбилискава🇬🇪гровера🙌👋🌱💚
Open
Week 1
Setup. Ventilation
likes
Answer
Organoman
answered grow question 5y ago
Google translate did not work on this question. May have to try again.
1 like
Complain
Similar Grow Questions
Solved
Ph0en1x
Struggle too keep Plants healthy
Hey, I really struggle with the heat. In the night, when my light Mars Hydro FC-E4800 is running currently at slightly less then 25%. My tent already reaches temperatures of 29Celsius. Though to increase the strength of my activated carbon filter, decreases my humidity too much
Leaves. Curl down
Plant. Stem - Weak
Setup. Ventilation
4mo ago
1
Solved
BullWeedDog
Como controlar renovación del aire en índoor
Como controlar la renovación del aire en índoor, cada cuánto debo apagar y encender los extractores e infractores del cultivo, puedo dejarlos apagados en las noches mientras la bombilla está apagada??
Other. General questions
Setup. Ventilation
Setup. Other
3y ago
3
3
Solved
420Highlifecouple
BEST Dehumidifier
Heys my fellow Green lovers QUICK QUESTION.Whats the best dehumidifier for value and quality???Having trouble with temp and humidity.
Other. Other
Setup. Ventilation
4y ago
1
1
Solved
Hou_Stone
Hello m'y room is 100x100x200 cm If I put a 150m3/uur fan as in the photo is this sufficient as an air inlet? I have an adjustable 400m3/ur extractor with carbon filter in the room
Setup. Ventilation
3y ago
2
2
Solved
Dillsnills
Dehumidifier in tent ok to blow on plants?
I'm running a small dehumidifier in my tent I've never had to put one in the tent before but I have more plants which means more humidity. Is it ok for the air coming out of the dehumidifier to blow on the plants or not? I didn't know if this will affect the plants. Advice apprec
Setup. Strain - Autoflowering
Setup. Ventilation
5y ago
2
2
Solved
Growvanced
Throw out one plant?
Is it productive to kill one plant if the rest of the plants are filling out the room just fine and to promote ventilation and light penetration? I have one plant that is way shorter and behind the others due to genetic problems.
Setup. Lighting
Setup. Ventilation
6y ago
1
3
Solved
lonelystoners
Grow temp
Hi, so my lamp is running at 100%, 20/4 My thermometer says my ax temperature is at 33 Celsius max. Is that bad?
Week 1
Setup. Ventilation
4y ago
7
4
Solved
alhambra
Exhausting air outside when using Air Conditioning, yes or no?
Hi there. This is my first indoor grow in soil. I have a room with A/C. The grow tent is in that room. My question is, should I be exhausting the air from the tent outside or into the room. If i exahust the air outside, isn't it counter productive to the A/C?
Setup. Ventilation
3y ago
3
3
Solved
InspireMe
Best way to keep a tent in the loft cool
Cooling the loft... so I've got my tent in the loft, I have a 4" inline extracting from the tent and a 6" inline feeding air into the loft. This works perfectly the majority of the time.. I can keep things at 25°c with ease. But on hot days the tents gets too hot....
Setup. Ventilation
5y ago
3
2
Solved
Sam_The_Herborist
Best option to ventilate without a fan
I use to grow my plant in a 60cm × 60cm I had a very low budget to start the cultivation and I plan to buy a fan asap Meanwhile I would know what is the best option to ventilate my plants ? Thanks for your responses :)
Week 3
Setup. Ventilation
6y ago
1
1
Solved
Theia
What air temp and RH should i be trying to acheive for flowering?
What should i be trying to acheive with RH and air temp for flower stage. I recently was subject to some intense heat and RH shot up to 92%. I have ordered a De humidifier to combat that and i have a fairly decent control over the air temps but i am not sure what i am trying for.
Setup. Ventilation
5y ago
4
4
Solved
ChopperMcOG
So has anybody used these cordless mini dehumidifiers in their grow rooms? They’re small units that u charge over night every so often when the silica changes colour? My grow room is very small so an electric dehumidifier wouldn’t fit and I’m struggling to keep humidity down
Setup. Ventilation
6y ago
1
2
Solved
TheHighentist
Temperature control - ????Cooling unit???? vs Heat mat
Since im going into flowering soon, i want temperature control. Im planning on buying an "Inkbird ITC-306T", with the function of day and night time. But i dont have space for a aircondition in my tent for cooling Can anyone recommend a cooling unit working similar to a heat mat
Setup. Ventilation
4y ago
2
Solved
Maskedcucumber
How do you deal with the humidifier in hydro ?
So I bought a dehumidifier as advised but now the room gets hotter (Had to setup an extractor to pull the hot air and now I have no intraction) and during the day EC goes up of 0.1 or even 0.2 (from 1.8 to 1.9 or 2). I suppose there are more nutriments because of dehumidification
Week 9
Setup. Ventilation
4y ago
3
3
Solved
DFWmd
Dehumidifier recommendations
Any recommendations about a dehumidifier for the 4x4 grow tent? I think even with vacuuming run-off more frequently, I won't be able to get humidity consistently down below 60%. Amazon has some in the 45-90 USD range...
Other. General questions
Setup. Ventilation
2y ago
2
3
Solved
xanado18
Best way to cool 5x5 tent
Trying to find a way to cool a 5x5 tent, the ambient temp in the room is a sweltering 100 degrees. Is there some kind of AC unit that hooks directly into an inline duct that I can pump directly into the tent? Looking for an overall solution to temperature control!
Setup. Ventilation
6y ago
1
1
Solved
iMpulsive_Grow
New grower and high tent temp. please help
So I have a 2by2 tent and temperature is staying around 80 degrees. I have a total of 3 fans in there and lowered the wattage on my 1000w hydro LED lights. What else can I do to keep it at optimal temperature? Also has a Hydro Co2 booster fan making it 4. any suggestions please?
Setup. Lighting
Setup. Ventilation
6y ago
2
1
Solved
Newbiegrower420
Dehumidifier Recommendations please?
Quick question? What do you all use for dehumidification? I’m running a 300w LED in a 3x3x2 ft tent with 4 girls in 3 gallon pots 4” fan with carbon filter. I need to lower humidity levels between a range of 10-20% what kind of dehumidifier would you all recommend? Cheap as poss!
Setup. Ventilation
5y ago
3
3
Solved
Spliffi
Stealth setup recommendations?
Any advice: all the heavy talkers out there nows you chance. I would like Any and all advice on building a stealth setup. Do you think this hardware will be good for 1 plant with heavy LST.
Setup. Lighting
Setup. Ventilation
3y ago
3
6
Solved
Woodside
Advice on growing in a 5x5 tent
After 3 attempts growing I’ve decided to invest the money in some decent equipment for a 5x5 tent,I currently have a ts3000I’m looking for help with how to ventilate the area correctly. The last 3 times I ended up with mold but used a light and tent. Advice for a set up please !
Setup. Substrates
Setup. Ventilation
3y ago
2
6