fan from bottom
koronkonkostarted grow question 6y 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
Louderanswered grow question 6y 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
Similar Grow Questions
Solved
Kitties_and_Colas
Negative pressure?Hey Grow Fam!! Could anyone explain to us why negative tent pressure is a bad thing? We always have a little bit of a pucker, but our spare exhaust is way too big for a 3x3, even on low..thanks for any input friends! Question theme: https://www.youtube.com/watch?v=YoDh_gHDvkk
Week 11
Setup. Ventilation
4y ago
2
2
Solved
Superjd
Overheat in tent? Measuring Correctly?HID lights on seedlings day 2 (25 cm dist.) I was alarmed by temperatures rising since yesterday to 35 despite exhaust & small fan inside tent. Tent doesn’t feel overly hot. moving sensor to above light it reads at a good 26-27. What’s the best way to understand tent temperature?Setup. Ventilation
6y ago
2
3
Solved
DaSofaSurfer
exhaust or ventilation?during "night time" I can only have one fan. I'm undecided on how the one fan can better serve me. exhaust or ventilation? which is more important during dark. I do have a dehumidifier btw. no ac but atm temps have been cooperating. cheers guys, thanx in advanceWeek 11
Setup. Ventilation
6y ago
5
5
Solved
RGGROW
Maintaining VPDI've got my photoperiod doing well in a 2x2 tent. I'm trying to regulate my VPD with what I have on hand. Currently I'm running my exhaust fan for 8 minutes every hour to get an average VPD around 1, but I'm concerned about the swings. Am I micromanaging?
Setup. Ventilation
Setup. Other
2y ago
1
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
3y ago
1
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
… Show more
3y ago
1
3
Solved
Trix420er
HumidityDoes humidity really have like a do or die ultimatum when planting indoors ?Week 2
Setup. Ventilation
6y ago
3
3
Solved
Nicogreen
Placering af hydro meterWhere in the tent is the best place for a hydro-thermometer? ️Since I have the fan at the bottom! And at the top! Plus exhaust to the carbon filter in the lower right corner by the opening (so the first hole in the lower right corner).Setup. Ventilation
3y ago
1
2
Solved
high_on_bridge
Can I exhaust my grow tent into the closet it's in?I'm putting a 3x3 grow tent into a larger closet I have (maybe 8' x 4')? So I guess the closet is called the lung room? I will have a carbon filter and inline fan in the grow tent exhausting out. Can I exhaust out into the closet it's in? Or is that a no-no? Pros and Cons?Setup. Ventilation
5y ago
4
Solved
Unkraut
Odor Problem in the last 2-3 weeksi have a problem with smell in the last 2-3 weeks...
i have a 0,80mx1,50m tent with a Rhino Pro carbon filter 765m³/h inside the tent and a carbon filter 800m³/h on the exhaust.
smell inside the grow room is quite subliminal but i can recognize it...
what would you suggest?Week 13
Setup. Ventilation
6y ago
3
3
Solved
Eagers
Seedling Air CirculationIm growing seedlings indoors in a window (they are only 7 days old) but ive been wondering at what point do the plants start needing circulating air?
Found limited answers online, they will be going out to greenhouse once theyre big enough but for now do they need a fan?Week 1
Setup. Ventilation
6y ago
4
5
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 inchSetup. Ventilation
Setup. Other
5y ago
1
Solved
Erasmus
Air flow methodI 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
jokgga
Mycelium or Fungus - Too much?Seeing a ton of mycelium or fungus on my medium. It is covering the entire pot. I am having problems with air circulating but have a fan at the bottom and up top, just nothing oscillating. Is this going to be a problem? What can I do?
Plant. Other
Setup. Ventilation
6y ago
1
1
Solved
Aldo90
Help with airflow. I've got an extractor and 3 circulating fans. Would a powerful inline fan be better than the 3 circulating fansQuestion about environment here.
I've got a 5x5 tent. Total 46m area.
460m3/hr needed to be extracted.
Extractor fan is capable of taking 600m3/hr.
I did have in an inline fan but it's no longer working. Do I need another inline fan ?? I've opened two ports for passive intakeSetup. Ventilation
4y ago
1
1