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Back to Grow Questions
Clip fan question
Xi_Ve
started grow question 5y ago
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?
Solved
Setup. Ventilation
likes
PenguHB
answered grow question 5y ago
If it is week 1 of veg then a small fan on low power, just enough to move the leaves a little bit. Later on - both bad boys on. Big fan on the top, small one on the bottom. Good luck!
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Selected By The Grower
TheReefinery
answered grow question 5y ago
Switch that bad boy on!! The more air circulation the better!!
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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
4y ago
5
4
Solved
Just_Weed
Do you think this is a better position for carbon filter so it can have better airflow or is it more important to scrub air from the top and have 2 90 degree bends? I'll probably try this in my next grow. Pic with drying plants is setup from before with 2 90 degree bends.
Week 11
Setup. Ventilation
6y ago
4
6
Solved
BudsRus
Small set up ventilation
Just ordered a second oscallating fan for my 2x2x4 foot grow tent, would a 4ich Inline fan been more suitable and just the one oscillating fan?
Setup. Ventilation
5y ago
1
Solved
Faegrows
How to reduce humidity in my grow space?
I'm just an amateur and am growing in my closet as I have very limited space. It's a small space in which I can't cut holes or openings. I use a small fan and a air purifier. Should I get more fans? Does a carbon filter or inline duct help if it can't exit out of the closet?
Setup. Ventilation
4y ago
3
5
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
Ganjaprenuer
Grow room / tent venting
Need help setting up a good vent system for a 600w hps air cooled reflector. If someone could just help by explaining a system that would work to cool my light and control smell.
Setup. Ventilation
5y ago
4
Solved
UpInSmoke420
What's a good dehumidifier for a small grow tent??
What's a good dehumidifier? At the moment I'm only using those cheap little things but my humidity is staying at 60/65 and want it lower for flowering. My room ain't big 1.2m x1.2m
Setup. Ventilation
Setup. Other
6y ago
2
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
BooBoosHotBoxCornGrow
Temp tent issue
Nice! Thanks guys for the quick help! I’m also kinda sort of having a temp issue, I’m trying to make it the best I can, I’m way down south and the temp reads 86-88 a lot. If I blast the fans and humidifier it does get down but I’m worried about the electric bill going up.
Week 1
Setup. Ventilation
6y ago
3
3
Solved
BullWeedDog
Capa de Cultivo Inflada presión positiva puede generar esto un problema???
Hey, my grow tent right now has what seems like a positive setup, meaning I’ve installed a VK Tubular Extractor with an airflow of 365 (m3/h). It's connected to an odor filter and a TT Intractor with two speeds, 220-280 (m3/h), using speed 1.
Setup. Ventilation
5y ago
1
1
Solved
Captain_marijuana
Hey guys. I have an air pump and air-stone for a hydroponic set but i decided to use a “smart pot” instead. Would putting the air-stone in the soil or directly under the pot help in any way?
Setup. Ventilation
3y ago
4
Solved
Fikumiku
Oscillating
Hello looking for recommendation for oscaliting fan please. My secret jardin monkey fan keep stop work after fev months....looking for brushless motor? Might be better?
Setup. Ventilation
1y ago
2
4
Solved
Newbiegrower420
Cooling whilst using humidifier outside a small grow tent
I have a small 90x90x60cm grow tent with a VIPARSPECTRA 300W LED. Heat levels are crazy and running a small humidifier with ice blocks inside the tent along side extraction isn’t cutting it. Could I buy a bigger humidifier, keep it outside the tent duct it in to keep it cool?
Setup. Ventilation
6y ago
4
10
Solved
Donkeybuds
Air con unit
I have 8ft x 8ft insulated room I want to remove the intake and exhaust fan due to noise. I want to run air con unit for heat and cooling may be co2 bottle would this be ok
Setup. Ventilation
6y ago
1
1
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
SupremeTimmy
Gathered a new tent temperature inside allows you to do without blowing. How much will affect a plant that grew without wind at all
Week 2
Setup. Ventilation
7y ago
6
5
Solved
TheNextGanjaMan
High humidity
Hello. Even with a dehumidifier and a 24-hour extractor, the humidity is still above 70% and one of the plants is almost in the flowering period. Can I add expanded clay on top of the vase to see if it lowers the humidity or putting more perlite will solve this? Thanks.
Other. General questions
Setup. Ventilation
4y ago
3
Solved
dauntless
Humidity at night. Should I add a heater or...
Lights on day, my temps are perfect, and my humidity is 55-59% at 74-80 degrees F. Night, temps drop to the 60s and humidity goes up to 70-78%. Bought tiny dehumidifier to add, and I could also small heater. Is 70-78% gonna mess me up? Indoor/Outdoor And Winter is coming. ;)
Week 11
Setup. Ventilation
6y ago
2
Solved
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
gammacrowns
Autos week 3 veg but only 4 nodes – could humidity swings be the cause?
In a 60×60 cm grow box I’m using a single-membrane mist maker with an STC-3028 humidity controller. Even with the exhaust fan at the lowest speed, RH swings every 2–3 min (67%→63% in ~90s, then back in ~90s). Is this fluctuation OK? My plant has only 4 nodes in week 3 of veg.
Leaves. Too few
Setup. Ventilation
6mo ago
2
1