The Grow Awards 2025 🏆 
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Hi all new grower here :) was wondering does my in...
greenfingers007started grow question 5 years ago
Hi all new grower here :) was wondering does my inline fan need to be on while im in the veg state???
Solved
Setup. Other
likes
BostonGirlGrowsanswered grow question 5 years ago
Hey there 👋
It will really depend on the temperature and humidity in your tent.
The fan helps lower temps and the humidity as well as aiding in smell control if you have a carbon filter attached. If you are comfortable with your current temps/humidity then you can wait it out until you notice that familiar smell.
Happy Growing 🌱
chasv77answered grow question 5 years ago
IMO, you really need some kind of circulation at all times.
As stated in the other answers, temps and humidity control are influenced a lot by your circulation.
But, I think you need to expel that air (oxygen), and bring in new (o2,co2) air for the plants to conduct their business.
For example, I have a grow cabinet that has a 2" input fan, and a 4" output fan through a filter. Those fans run ALL the time, while my separate 4" fan inside the cabinet, provides additional air, when the lights are on.
likes
Complain
GMSgrowsanswered grow question 5 years ago
If your in a tent it's good to have fresh air all the time when lights are on. You can shut them down in dark hours
1 like
Complain
Similar Grow Questions
Solved
MaestroBud
🚀 Growers, Unlock Your Secrets: Mars Hydro Watering Cycles in Action!Growers, what cycles (number and duration) do you use with the Mars Hydro kit? I use 40L pots with lightly fertilized Supersoil and Advanced Nutrients Ph Perfect (+ additives). Advice on irrigation? Thanks! 😎Setup. Other
Feeding. Automatic systems
21 days ago
8
6
Solved
PatienceIsKey
how to: higher humidity / any suggestions to improve the setup?The humidity in my tent is too low. How can I fix this? I would be happy to receive suggestions and generally any well-founded suggestion is welcome. Please take a look at my diary to find more detailed information.Setup. Other
25 days ago
16
10
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
3 months ago
1
Solved
Biglegs_Cupboard
Big Plant Science ThailandHow can I add the following line of products for Big Plant Science. I'm using the full range here in Thailand...
https://bigplantscience.co.th/shop/?srsltid=AfmBOorgd12Xg0X8DQaCe4xESxZWN1MXo2yUYmmm9uD5KuDBro4j_TB0
Thanks and apologies if inappropriate.Other. General questions
Setup. Other
5 months ago
1
2
Solved
Blubbiblubb
Is It Safe to Direct Humidifier Mist Above Grow Light in Tent Setup?I want to place my AC Infinity humidifier outside my grow tent and direct the mist through a pipe into the top of the tent, as shown in this diagram. However, my SF1000 EVO light will hang directly below the mist output. Could this cause issues?Setup. Other
5 months ago
3
9
Solved
JSanchezz
65% RH in early Flower to reduce VPD to 1.3 ? good / bad ?I have the problem that I should give my plants more light to benefit from the C02
I have increased day 5 Flower from 25 to 30 DLI.
Environment 24C Leaf temp 25.5-26C leafe vpd 1.3 @65RH
have tried to raise the light and turn it up more to get back to 30 dli, leaf temp unchangedSetup. Other
5 months ago
2
Solved
Freaky
How to use EC meter Milwaukee CD611I bought a EC Milwaukee CD611 tester and I don’t know how it works? With tap water + A+B it displays 11... I have a crop chart for autoflowering in which it is indicated in the line CE (Vegetative: 0.9-1.1 EC) How to match this chart with the numbers on the screen of the CD611?Setup. Other
Feeding. Other
4 months ago
2
Solved
JSanchezz
how long can i lock her upCan you give me an estimate of how long I can raise 2 ladies here before I have to move them?
next cultivation is sativa heavy (SourDiesel)
up to 450DLI in here possible
climate can be controlled
just an estimation 2-3 weeks ? after germination ?Setup. Other
5 months ago
1
Solved
Brahma
TentsWhat is the best grow tent on the market right now?Week 4
Setup. Other
7 months ago
2
6
Solved
GrowDiarhia
Using grow net properly.Am I using this net properly?Week 11
Setup. Other
6 months ago
7
Solved
JSanchezz
Stop Co2 support = stress response ? or any other issues ?in the Pictures u can see i have realy constant climate control
Leafe VPD 08-09 Leaf Temp 24.5
Using for 4 Days 1 candel to produce Co2 what gives me constant ~1100ppm at night i stop
Ist it harmfull or streffsull for example if i stop supporting CO2 when flowerSetup. Other
6 months ago
1
6
Solved
Dr_Perl_Junior
Hey folks, newbie here! Any experiences upgrading the older model of Mars Hydro TSW 2000 with a custom controller/dimmer for Home Assistant integration? Insights appreciated! Thanks!Setup. Lighting
Setup. Other
10 months ago
4
2
Solved
Dr_Perl_Junior
Sorry hat the question earlier before but I'm new here so I dont know how to undo the solved quesion status. The LED has about 300W and I want to dimm it. not simply turn it on/off. Preferably with some kind of integration in home automation systems like Home Assistant. Thanks :)Setup. Lighting
Setup. Other
10 months ago
1
2
Solved
Dennis_Bong
ppfd meterhey, I have 2 sanligt evo 3 on ck 1m2 40 inches in my box. I would like to get another lamp for the night grow and drive absolute extreme values. I've looked for ppfd meters. The ones recommended by Apogee are always there Someone had experience with something comparable and cheaSetup. Other
a year ago
2
2
Solved
GoldenWeedGrower
New Set UpI'm going to set up my new grow environment with a new tent 120x60. The system will use rockwoll cubes and a capillary system. I will stress my girls a lot in order to take all the available space. The question is: in your opinion how many plants should I cultivate?Setup. Other
10 months ago
6
6
