Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Northern lights low odor ??
Wuutownwarrior
started grow question 6y ago
Im growing 3 Northern lights autos was told there low odor strains is this true ? Does anybody know any outside greenhouse odor control techniques was wondering if anybody has used ona gel I have planted some marigolds and other plants with it .
Solved
Setup. Ventilation
likes
Weedster
answered grow question 6y ago
I have duct fan removing air through activecarbon filter and it works very well 🙂(I also have tested Ona gel it was very effective👍)
1 like
Complain
Selected By The Grower
Similar Grow Questions
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
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
SteelTreeFarm
Air for small tent?
Just a quick one people, I only have a outlet fan in my tent? My tent is 70x70x160cm if I open the bottom vents on my tent would this be enough air for the flowers at later stages if I open a window in the same room to allow fresh air?
Week 1
Setup. Ventilation
5y ago
3
2
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
4mo ago
1
1
Solved
FingersCrossed
How to keep spacebucket cool
Even when lights are off, bucket temperatures can reach upto 40*C rarely seeming to dip below 30, icepacks help lower temp and raise humidity for a bit, i worry the 2 passive intakes i have arent large enough, although the room itself is very warm too, air con only option?
Week 2
Setup. Ventilation
6y ago
2
2
Solved
Crpehdm
High heat in greenhouse, how hot is to hot?
I built a 16x20 greenhouse with dual vents and a 24” exhaust fan. I hit a max of 122 (it’s 92 outside). I typically reach 105-110 on regular days. Everyone looks happy other than an nutrient burn issue. Can weed plants handle this kinda heat?
Setup. Ventilation
6y ago
3
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
6y ago
1
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
6y ago
3
Solved
Percy
Marshydro ts600 for a 50x50x100
Hi quick question, Purchasing 50x50x100 tent Will the marshydro ts600 be ideal for this yes just shy of 2x2. Im aware the ts1000 is better and has dimmable option but wouldn't that be too powerful for my little 2x2 with a height if only 100cm? Will be from (marshydroled.co.uk)
Setup. Lighting
Setup. Ventilation
5y ago
3
5
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
Buddie
Humidity problems
Having humidity problems.using 4 inch inline fan with a carbon filter, 400w hid with enclosed hood.(dwc)2weeks from finish Which is better to lower humidity, bigger fan or a dehumidifier? And if a dehumidifier,big one or small one like off amazon.
Week 12
Setup. Ventilation
6y ago
1
1
Solved
Eagers
Seedling Air Circulation
Im 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
BobGoose
Discreet set up
Living in the UK and want to be as discreet as possible for obvious reasons 🚔 Need tips on where I can set up extract and intake without being too visible from the outside and also really quiet fan recommendations? Growing in loft so can get quite warm in the summer months
Setup. Ventilation
4y ago
3
2
Solved
Spliffi
Stealth setup recommendations?
Any advice: all the heavy talkers out there nows you chance. I would like Any and all advice on building a stealth setup. Do you think this hardware will be good for 1 plant with heavy LST.
Setup. Lighting
Setup. Ventilation
3y ago
3
6
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
3
Solved
Luna91
2200w LED
Hiii I got two LEDlamps 2200w in total but can’t use their max power cuz the temperature will be over 37soon! In order to cool down the tent I’ll need a true AC or a powerful fan, both of these products in photo are dehumidifiers as well, that 80€fan will cool ⬇️? Cuz im on budge
Week 5
Setup. Ventilation
6y ago
1
2
Solved
Horseluisweed
Ventilación y Luz en plantulas
Me inspiré en McGyver y he puesto un armario improvisado... Cómo de importante es la ventilación en esta etapa de plantula?🌬️ (He dejado la puerta entreabierta por las dudas)🤔 También he puesto otra luz auxiliar..se notará en el crecimiento o desperdicio luz?🔌🔋
Week 1
Setup. Lighting
Setup. Ventilation
Setup. Seedling
5y ago
3
2
Solved
Lazuli
Growtent Humidity control
How do you control humidity/temp when using a grow tent? is it enough to put a dehumidifier in the same room as the tent and close the tent and just blow the air outside with a fan and tubing? Do u need an intake fan too? Or does the "good air" gets sucked in enough without ? THX
Setup. Ventilation
5y ago
4
4
Solved
alhambra
Temperature Probe. Where to place it?
I use a Vivosun exhaust and control hub. It comes with the temperature and humidity probe. I am curious, based on experienced growers here, where do I place this probe? On the floor or do I let it hang mid-way in the the plant itself?
Setup. Ventilation
3y ago
4
Solved
GoodVibeSpreader
Light and Tent, Indoor Grow ?
Hi people, One of my friend planned to grow indoor, he has the perfect room for it but since he's starting and we're growing cannabis on a budget I wonder what light and tent should we start with (for everything else i can help him since I already grown weed outdoor) Thanks !
Setup. Lighting
Setup. Ventilation
5y ago
1
1