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Back to Grow Questions
Co2
Chaweeder
started grow question 6y ago
I just put co2 in my flower room should I turn off my exhaust fan and other fans in the room? I'm using a 20lbs bottle and reg,
Solved
Setup. Ventilation
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Bloombuster
answered grow question 6y ago
Hey, buddy! 👋 No, don't turn off the fan! CO2 is 1.5 times heavier than air! It will settle down near the floor and be at the roots, where it needs to be! 👌 Good luck, bro! ✊😇
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Selected By The Grower
Similar Grow Questions
Solved
versace_grow
RH 90% during Flowering!
I have a problem with RH. I am at the 3rd week of Flowering and I'm struggling to keep my RH down. Today it was 90% when I opened the grow box. I have access only to a window. Is it better to suck air inside or blow the exhausted air out? I can't do both
Setup. Sensors
Setup. Ventilation
6y ago
2
3
Solved
Odin9
Plece help me to chose the best fan for the lover part..asap I most order now
Which fan sculd I go for in the lower part off tent??? I have det biggest 30w from secret jardin on top
Setup. Ventilation
5y ago
3
5
Solved
Newbiegrower420
Best Humidifier for 3x3x2 grow tent and best way to set up?
I’m about to buy a dehumidifier. Finding one with programable humidity levels makes them too big 4 my tent & the small ones can’t be programmed to turn off when humidity is too low. Can I get a cheap one with no controls and manage humidity with my Humidistat alone? Will it work?
Setup. Ventilation
6y ago
1
3
Solved
Wuutownwarrior
Northern lights low odor ??
Im growing 3 Northern lights autos was told there low odor strains is this true ? Does anybody know any outside greenhouse odor control techniques was wondering if anybody has used ona gel I have planted some marigolds and other plants with it .
Setup. Ventilation
6y ago
1
1
Solved
Ign33l
Substrate lil fly
So: I got a dehumidifier to regulate and keep the humidity in 50%. When i opend the deposit of the water of the dehumifier i found these little flies that are the classic Substrate fly (nasty but no harm). Do yall think that the dehumidifier got them? Has this even happened to U
Week 6
Setup. Substrates
Setup. Ventilation
6y ago
1
1
Solved
Cali_928
Looking for some input.
Looking for some input on inline fans n carbon filter for a 2x2x4 grow tent. Which ones to get/ stay away from? 6in or 4in? Much appreciated.
Setup. Ventilation
6y ago
3
3
Solved
smokeshi
New Light? Find a way to raise light? More Fans? Combination? (Light: 44" above ground level | Tent Height: 63" Day avg: 78.6f) Should i worry?
What do you guys recommend as far as lighting for this tent? I have a 300w led light but at the height it's currently at it is producing a large amount of heat with my exhaust and two oscillating fans? I also have other plants in with my seedling so could the humidity cause it?
Week 1
Other. Other
Setup. Lighting
Setup. Ventilation
6y ago
2
Solved
Herbinator
Can RH be raised to 100% for short periods of time?
My extraction is noisy and the humidity is causing a sore throat at night. Can I switch it off and raise my RH to 95% on a regular basis without stressing the plants? I have an indoor grow 2"x2" that runs full ventilation. RH rises from 70% to 95% after 30 mins of no venting.
Week 6
Setup. Ventilation
6y ago
2
Solved
TheChronicHunter
Odour control
First indoor grow and is a stealth grow. I’m wondering if complete odour control is possible for one plant. One auto in the tent with a large carbon filter and appropriately size duct fan, walls are sucked in — I also have ona blocks to place around room during flower.
Week 3
Setup. Ventilation
6y ago
1
1
Solved
BullWeedDog
Que tiempo tengo que dejar mi ventilar encendido??
Can I use the fan in my grow only when the light is on?? I mean, can I set it to turn on and off with the light in the same cycle, or should it always be on??
Other. General questions
Setup. Lighting
Setup. Ventilation
5y ago
1
1
Solved
BullWeedDog
Humedad dentro del cultivo
The humidity is reaching 80% and even 90% in my grow, I've bought a humidity reducer that they sell at the supermarket, one of those that reduces humidity and has some stones inside. Will this harm the plants??
Other. General questions
Other. Other
Setup. Ventilation
4y ago
1
2
Solved
Trix420er
Humidity
Does humidity really have like a do or die ultimatum when planting indoors ?
Week 2
Setup. Ventilation
6y ago
3
3
Solved
BigDaddyK
Humidity ?
When should I remove the top of the propagator ?
Week 1
Setup. Ventilation
7y ago
6
4
Solved
PortkeyCannabis
Humidity
I’ve been seeing a lot of people have a much lower humidity. I’ve been keeping mine at 75-80 with around the same temps. Is that to high?
Week 4
Setup. Ventilation
4y ago
1
1
Solved
JL420
Ventilador encima del Led en cultivo en cultivo de 0,6x0,6x140cm
Hello, good morning! I have a question about the placement of my oscillating fan. I have a grow tent that is 0.6x0.6x1.45m with a Lumatek Attis 200w LED. My question is: Could I place the oscillating fan above the LED pointing down? I'm asking because it's quite large.
Setup. Ventilation
4y ago
4
Solved
Maskedcucumber
Humidity issues near flowering
So I installed an intraction (145 m3/h speed1) and aluminium foil on the pots but humidity is still hight like 75% when nightime and the lowest is 65%. Probably the water evaporates by the pots (drip, clay pebbles). I have no more ideas. Do I have to buy a deshumidifier? Thx !
Week 6
Setup. Ventilation
5y ago
3
3
Solved
KCduzit
How can I get my humidity down? (Basement grow tent)
Plants are currently sitting at Rh 55% on my controller on day one of flower. I have a small $40 probreeze (Amazon) dehumidifier In the tent and am using a 4 inch intake (full strength) and 6 inch exhaust fan (1/4 strength). Day Temps around 25 Celsius in basement
Week 8
Setup. Sensors
Setup. Ventilation
6y ago
2
3
Solved
VeggieTales
Best Oscillating Fan
Hello fellow growers! I’m currently working in a 4x4 tent and am in need of an oscillating fan, preferably clip on but any suggestions are appreciated. Happy Growing Cheers! 🌱🎄🔥
Setup. Ventilation
6y ago
1
1
Solved
LukeLaBam
Carbon Filter smaller than Fan
Is it bad if the Fan makes 200m3 but the Carbon Filter is only for 100m3? Do I need to change it as quickly as possible? (Tent 60x60x160)
Setup. Ventilation
4y ago
2
2
Solved
GringosGarden
High humidity
The humidity hit 63% today in my tent for 4 hours while I wasn’t home I had the exhaust fan on full blast and 2 oscillating fans in the tent once I got home I turned my dehumidifier on it’s down to 45% now will it be ok or do I need to watch for bud rot?
Week 7
Setup. Ventilation
6y ago
3
2