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Back to Grow Questions
ExHale CO2 Grow Bags
NorCalAlien
started grow question 4y ago
Anyone had any experience using these CO2 bags? Wondering how many would be necessary to adequately fill a 5' x 3' x 2' grow space.
Open
Setup. Ventilation
likes
Answer
Roberts
answered grow question 4y ago
One will work. Minimum air exchange with outside of tent if not in a sealed room to get any benefits
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Complain
Organoman
answered grow question 4y ago
Unless you are growing in a closed/sealed system, CO2 bags are largely a waste of money, as your fans will remove any CO2 before it has any chance of being of any benefit to your plants.
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Similar Grow Questions
Solved
Hongo
Please look at the leaves shown, orange and dried parts. I asked a similar question earlier but these look more damaged and I'm wondering if it's worsened due to my setup. Wind damage from fans? Water damage from humidifier? Light or heat damage? Managing VPD is tough. Thanks!
Week 8
Leaves. Color - Mottling
Setup. Strain - Autoflowering
Setup. Ventilation
3y ago
5
4
Solved
Abacus
Axial in-line fan
I have a tent 60x60x140 cm, and in output a carbon filter (and made refilled, could I filled to much?) inside the tent and outside an axial in-line fan VENTS 100 VKO1k turbo, Maximum capacity - 137 m3/h. A friend say me that probably is not enough.
Setup. Ventilation
4y ago
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spelly
Auf der Suche nach der richtigen Luft Einstellung
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Week 1
Setup. Ventilation
4y ago
2
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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
4y ago
3
3
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pichiherbs
Cant lower RH while flowering
What if u cant lower humidity? Because the garagebox is rh 75%. And with the rain here it wont lower. If u cant take avantage of the RH. Is it definitly a problem? If i do -cannacure treatment -use milk/water solution if area's got infected -defoliation Or is It doomed to fai?
Buds. Other
Setup. Ventilation
5y ago
3
6
Solved
DWCbuds
Lights airstone c02
What light to plant distance would you set it at? The only test I've done is at 25 inches its stable at 80°f and 75% humidity. When I lower it to 18 inches, the tent read 85°f and 73 humidity. Other question I have is what's your favorite air stone(disk)? Lastly, add c02 yes/no
Week 2
Setup. Strain - Autoflowering
Setup. Lighting
Setup. Ventilation
5y ago
2
2
Solved
Cannabingrowin
Tents. 48 inches by 48 inches and 80 inches tall. What is your brand and why?
I need a new tent. I am thinking AC infinity or Vivospectra. What should I look for? Strength, Thickness of material, Holes for ducts, anything else? What is your reccomeded tent and why? Also how long do AC infinity carbon scrubbers last with active in and outake they are 8 inch
Setup. Ventilation
Setup. Other
4y ago
1
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Hou_Stone
air inlet ?
I have a 100x100x200 cm chamber with a 205 CFM extractor. But I don't understand what is needed for the air inlet. leaving a hole open at the bottom with nothing is enough ?
Setup. Ventilation
3y ago
4
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DoomSmoker
Can't vent exhaust fan outside, is this a problem?
I have my 2x2x4 tent in a closet, with a 4" carbon filter inside the tent and a 4" inline fan outside of the tent, exhausting. But I have no way of directing the air to outside or even out of the room. Will this be a major problem for me? Room is otherwise AC'd via central air.
Setup. Ventilation
5y ago
1
4
Solved
Lordcrow
I am facing a temperature problem again....
My tent reaches 84.2F, which is too hot in my opinion. But my humidity is perfect. On the other hand, if I activate the ventilation, the temperature of the tent reaches 76F, which is perfect, but the humidity level drops dramatically to 35%. 1- Keep Humidity or 2-Keep Temp
Week 1
Setup. Ventilation
3y ago
4
5
Solved
Bananito
How to Lower Humidity
The weather outside was really wet and chilly for days here and the humidity is about 60% at this point. Without a duct fan, how can I lower the humidity in the tent? I'm using several small fans right now. I plan to get a duct fan when I can, but I need something until then
Week 25
Setup. Ventilation
6y ago
3
4
Solved
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Week 7
Setup. Ventilation
5y ago
2
1
Solved
Gabriel_OD
Is high humidity at night bad for cannabis?
During day, I can maintain the grow room temperature to 75-77'F and humidity 55-65%. But at night, temperature raised up to 77-80'F and humidity up to 70-80% because I closed vents and air condition. Could this effect my plants in long term? Should I open vents at night also?
Setup. Ventilation
3y ago
4
4
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
TripleCcannabis
Grow tent climate control
Im looking for a product that will control the temperature inside my tent automatically. Something that I can plug a heater and ac into and it will turn them on and off to keep the temperature optimal. Im also looking for a product to do the same thing with humidity. Suggestions?
Setup. Sensors
Setup. Ventilation
6y ago
3
Solved
MrBz21
Ventilation Setup for Smell Attenuation
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Setup. Ventilation
4y ago
1
3
Solved
Spliffi
Stealth setup recommendations?
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Setup. Lighting
Setup. Ventilation
3y ago
3
6
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madflavoursgarden
Grow Tent/Room setup in the basement - dehumidifier or humidifier needed?
I’m planning a small grow setup in my basement and have a room that’s holding a steady 17–18 °C (62–64 °F) with about 55–58% relative humidity. My plan is to vent the exhaust from the grow box straight outside through an existing duct. Will I need a de- or humidifier? Thanks!
Setup. Ventilation
Setup. Other
9mo ago
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IsseyBukkake
Humidity spike?
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Week 3
Other. General questions
Setup. Ventilation
5y ago
1
1
Solved
Basementgrow05
Help! Drying ?!?
So I have my plants about too finish but not all so I have too find a space too dry them when I chop them down and what would be better trimmed hang dry for a day or 2 and then push them in jars but boveda packs or is 71 61 too high F & RH
Week 10
Setup. Ventilation
5y ago
1
7