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Back to Grow Questions
fan from bottom
koronkonko
started grow question 4y 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 4y 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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Complain
Selected By The Grower
Similar Grow Questions
Solved
Newbiegrower420
Grow tent Temperature
I have a 90cmx90cmx60cm grow tent with a VIPARSPECTRA 300W LED Grow Light inside.. How much will an extraction fan and carbon filter bring down the temp inside? In this heatwave my tent is running at 33 deg C, no plants seeded yet. Will the fan be enough or should I get a cooler?
Setup. Ventilation
5y ago
2
2
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
RichBud5
Now getting condesation in my tent when I've added this duct to a pipe exiting the house? Am near harvest too.
Didn't have an issue with condensation inside the tent before, now that I've attached the duct to a pipe going out i'm getting condensation inside... Does the set up look right? I've hooked up to a smaller tent too via a T. Could it be pressure?
Setup. Ventilation
4y ago
3
2
Solved
TeesTrees
should i get a table AC unit to cool room for night temp by 15 degrees?
Iv read that to get the purple colour from the plant i have to get night time temp to be 15 degrees lower than day temp. Im working with basically a 1 sqr meter space and i was going to buy a tower ac unit to cool the temp down Or one of those ac units where you put ice and water
Setup. Strain - Autoflowering
Setup. Ventilation
Techniques. Other
3y ago
1
8
Solved
idkman1337
High humidity during flowering
I don't have an exhaust fan since this is my first growth and I'm quite on a budget my humidity averages around 65-75% I know high humidity increases risk of mould and bud rot is it necessary to get an exhaust fan and aiming for 40-50% or just risking the consequences?
Week 9
Setup. Ventilation
3y ago
1
1
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
5y ago
1
3
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
GrowGirl419
Fans
Do you guys leave all of your fans on all the time? I do but I'm wondering if I should. My best fan is getting hot hot hot however, if I turn it off I'm afraid it'll be too hot in my room or the air will get stag. What do you do? Rotate fans? Turn em off for a bit each day or?
Week 10
Setup. Ventilation
5y ago
3
2
Solved
Xi_Ve
Clip fan question
Should i turn on the clip fans on low power and let them blow on the girls, or just leave the big fan blowing under the light?
Setup. Ventilation
4y ago
2
2
Solved
Odin9
Air inntake?
Hi new nub question I have a 120x120 secret jardin hs 1 passive air intake. sculd I have the window open too? Ore sculd I seal the inline hole and only open the widow /passiv air intake?? Pic 1 2 ore 3
Setup. Ventilation
4y ago
1
4
Solved
UrbanPlannerGrower
Help Dropping Humidity
Hi Bud.I have a zootly tent with two flap mesh vents at the bottom. I have a secret jardin exhaust fan and filter. I'm trying to get my tent at 50% r/h but cannot drop lower than 65% and I'm in early flower. I have one of the flap mesh vents opened for passive intake. Please help
Other. General questions
Setup. Lighting
Setup. Ventilation
3y ago
4
Solved
PoleKat
Looking for someone to look at my pics and give me advice on ventilation for mini grow room. Also if my plants look good for day 3? Any tips? Thanks!!!!
Hi, wondering is you guys could look at my enclosure and give me some ideas as to when and how I should provide some air circulation to my seedlings? I plan to keep them in here for the next couple weeks like a small grow room. Also, do they look happy for day#3? Advice? Thanx
Week 1
Setup. Strain - Autoflowering
Setup. Lighting
Setup. Ventilation
5y ago
4
2
Solved
Hilltopflop
Where are you based dasboof and Yh very well ventilated
Week 7
Setup. Ventilation
4y ago
3
2
Solved
Andreskaja
I'm still worried because the temperatures still haven't dropped this afternoon, it rose to 33 degrees and I tried, as you see in the videos, putting two fans or one big one and nothing. Do you recommend turning on the light at night in the morning and how would it be to change t
Other. Other
Plant. Other
Setup. Ventilation
3y ago
2
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
5y ago
1
1
Solved
kaladoum
Ventilation
I just have one plant under a small grow tent. But I haven't set up a ventilation system that looks a bit complicated to me to install. Is it possible to function without if I open the grow tent wildly once or twice a day to change the air ? Or will I be in trouble ?
Setup. Ventilation
4y ago
1
3
Solved
matt_i_us
Condensation build up
I have some condensation build up in my pots that I germinated in. Should I do anything about it. I've also noticed some green algae build up on the sides. Should I be concerned with this Any help is much appreciated.
Setup. Substrates
Setup. Ventilation
Germination. Other
4y ago
1
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
5y ago
3
Solved
UpInSmoke420
What equipment do I need to close my tent fully??
I want to be able to close my tent completely without it getting too hot in there, I currently have it open to keep it cool, but what do I need to close it? Isit just some ducting and fans and also a air con unit?
Setup. Ventilation
Setup. Other
5y ago
1
4
Solved
NonameGrowDude
grow tent / lung room temps???
Dialling in my tent and want to compare to others to see if more ventilation = lower temps. What temperature and humidity difference do you have in your tent and "lung room"? Do you exhaust your air from the tent to the outside of your lung room?
Setup. Ventilation
2y ago
1