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Back to Grow Questions
fan from bottom
koronkonko
started grow question 5y ago
Hi! is it a good idea to blow fan from bottom to plants? Of course i have a fan with carbon filter on top of the box.
Solved
Setup. Ventilation
likes
Louder
answered grow question 5y ago
I run one that blows over the top of the soil and another over the canopy. Don't see an issue with what you're doing
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Selected By The Grower
Similar Grow Questions
Solved
DopeGrows
Temps Humidty Optimization, Worried about mid/late flower
Hello guys My grow tents have high humidity. A fan is venting into attic. There is a vacuum in the room so the air is circulating+ dehumidifer outside tent Maybe too many plants? Night~19° Day~25° 55-62% RH too high for flower? Want to prevent budrot. Temps OK? Any ideas? Thanks!
Week 6
Other. Mold
Setup. Ventilation
4y ago
7
4
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
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
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Solved
Lovni
Problème humidité
Je n'arrive pas à stabiliser l'humidité. J'ai arroser les parois de la tente lors du dernier Arrosage qui aura une solution pour garder une bonne humidité et que humidité sera idéal pour la suite ?
Week 3
Setup. Ventilation
4y ago
2
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Solved
savethehumanseh
How can I reduce the heat in my 5x5 tent (650w light bar/6" ac Infinity and a ton of fans) without AC? Do I have to leave tent open?
5x5 tent is in a kind of lung room (utility room) that stays around 20C/68F. The tent always seems to be at 30C86F with lights on. Ive added and moved fans, opened more intake vents. I have AC, but its -25C/-13F outside. Id like to drop the daytime temp 5ish degrees for flower.
Setup. Lighting
Setup. Ventilation
5y ago
2
6
Solved
Erasmus
Air flow method
I removed the hood from the home AC to run cold air directly into the grow tent with a 4 inch duct at the bottom. I have an inline fan to push hot air out to balance out the air pressure at the top. Is this a good idea or should I just have a fan inside with no in or out?
Week 4
Setup. Ventilation
6y ago
5
Solved
Kdog20
Question about ventilation
I have a 200cm tall tent with a carbon filter connected to an extracter fan/ duct leaving the top corner of my tent. I have no intake air fan connected, although the walls of the tent are bending inward- should I add an intake fan in the bottom of the tent?
Week 1
Setup. Ventilation
6y ago
3
3
Solved
kardel
Guys, Need help about Droopy again, Is Mist from humidifier is a culprit ?
My plant are happy but she look droopy "when I turn on humidifier" 1st pic is today, actually she not look like this before i turn on humidifier. 29-30'c and 65%RH 2nd pic is yesterday when I turn off my humidifier. 30-31'c and 45-50%RH 15days old. humidifier beside her pot.
Week 2
Plant. Wilting
Setup. Ventilation
2y ago
1
3
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CannabisRelated
Is that clip on fan going to cause wind burn? should I lift it up higher? It is on the low setting as well. (week 11 video of fan)
Setup. Ventilation
5y ago
1
Solved
espaiderman
Ventilación ideal en 1x1 metro
Necesito un sistema de ventilación acorde para una carpa de cultivo de 1x1 metro donde tengo un SCROG de 2 macetas de 25L . Que sistema de intracción, de extracción y filtro de carbono serian recomendables? Bajo ninguna circunstancia puedo permitir olor en el cultivo. Utilizo LED
Setup. Ventilation
6y ago
2
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Ema26
What’s up guys me again😂 I’ve got my hps up and running and I’ve got the temperature under control by having my fan blowing directly at the light and I’ve added a oscillating tower fan. How can I keep the temps up when lights go off? Many thanks!
Other. Other
Setup. Lighting
Setup. Ventilation
6y ago
3
5
Solved
chronicon
tent without exhaust fan, should i leave a flap open?
hello, i have a large double tent without exhaust fan, should i leave a flap open? before i always kept one door open as i thought it should have air rather then closing it all up
Setup. Ventilation
3y ago
1
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Alsterly
Are (constantly) high daytime temperatures a huge problem in flower?
My day temperature since turing my light up to max during flower are reaching 29-30c | 84.2 - 86f, while the daytime RH is at roughly 40% - 50%. Is the high temperature something to be concerned about? pics 1 and 2 are the exact same data as pics 3 and 4, just set to c/f each.
Week 11
Other. General questions
Plant. Other
Setup. Ventilation
10mo ago
1
Solved
Dankbudz84
Sealed grow air scrub
After adding a dehumidifier, evaporative cooler and c02 bag I decided to go ahead and do a sealed grow to better control the environment. Conditions look great. I’d like to know if I can loop my exhaust to recirculate the air to scrub it when things get stank? Video on the diary
Week 1
Setup. Ventilation
5y ago
3
Solved
ganzigunnu
Dealing with hot summer
im experiencing 32 degrees celcius it's middle way through flowering. do you think it's too bad or does it reduce my harvest significantly? what happens if i switch to 12/12?
Week 7
Setup. Lighting
Setup. Ventilation
5y ago
2
2
Solved
martiniii
Do any body have any experience in making your own carbon filter?
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Setup. Ventilation
5y ago
2
2
Solved
Brux13
Humidity 70%
Guys, what do you think about this progress ? I tried to put humidity low but 70% is my best.. Any chances of future problems ?
Week 8
Setup. Ventilation
6y ago
2
1
Solved
Screwie
Extraction fan running
I have a Ambient Q60 tent... When I cover up the air intake holes during light off hours and want to leave the extraction fan running, the air from the whole tent looks like its being sucked out. There's no room for air to get it. Am I doing something wrong?
Setup. Ventilation
5y ago
3
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Solved
Codybadger
A/C Recommendations
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Setup. Ventilation
3y ago
1
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Wuutownwarrior
Northern lights low odor ??
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Setup. Ventilation
6y ago
1
1