AngryMexican
Active Member
Hello guys, wasn't able to find anything by google, so the only option is to ask here 
Have anybody faced such problem?
Have anybody faced such problem?
Symptoms of not enough air flow?
- Thread starter AngryMexican
- Start date
Chunky Stool
Well-Known Member
PM could be the first symptom of insufficient air flow.
Good air circulation also fucks with bugs like spider mites and fungus gnats. They hate it.
Good air circulation also fucks with bugs like spider mites and fungus gnats. They hate it.
SchmoeJoe
Well-Known Member
Do you mean air exchanges or circulation? Air flow is pretty ambiguos and could mean either.Hello guys, wasn't able to find anything by google, so the only option is to ask here
Have anybody faced such problem?
Kingrow1
Well-Known Member
My plants grow better with no wind, air exchange simple reduces heat and replenishes Co2.
In a closed system with no air exchange wind or air flow plants grew fine as long as the same amount of Co2 the plants used was replaced.
Most studies find adverse effects once wind speed raised above between 0.3m/s - 0.5m/s at leaf level.
Just having a vent open will mean enough Co2 will enter your tent, mechanical extraction is not needed as it disperses easily from high to low density.
In a closed system with no air exchange wind or air flow plants grew fine as long as the same amount of Co2 the plants used was replaced.
Most studies find adverse effects once wind speed raised above between 0.3m/s - 0.5m/s at leaf level.
Just having a vent open will mean enough Co2 will enter your tent, mechanical extraction is not needed as it disperses easily from high to low density.
AngryMexican
Active Member
I mean circulation inside the tent.
I must also depend on RH level I think. If there is no wind at all and the RH level at 90%...
SchmoeJoe
Well-Known Member
Your Rh shouldn't be that high. I'm guessing you're either not exhausting the tent or not exchanging the air in the room that the tent is exhausting into. No amount of circulation will change your Rh if you're not exchanging the air.
vostok
Well-Known Member
if you asked me what the symptoms of poor air flow imoHello guys, wasn't able to find anything by google, so the only option is to ask here
Have anybody faced such problem?
would be high to very high humidity
sagging not wilted leaves
and type of spongy with old fan leaves
leave even a small gap open at the bottom of the tent and the top
good luck
vostok
Well-Known Member
Hello guys, wasn't able to find anything by google, so the only option is to ask here
Have anybody faced such problem?
check out the best vent thread on the web
https://www.icmag.com/ic/showthread.php?t=112862
AngryMexican
Active Member
My RH is not that high, it goes from 50 to up to 75, but most of the time 60-65... And I am currently at the end of the week 3
I have 2 tiny circulation fans blowing air around in 3x7 tent so I am trying to figure out if it is not enough... Anyway, went to store to buy 2 more =D
AngryMexican
Active Member
This one is really informative
SchmoeJoe
Well-Known Member
Do you have an exhaust? 75% is still high enough to be likely to cause mold problems and it will definitely lower your yield.
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Flowki
Well-Known Member
That's a great system if the outside air is above 60f. If the outside air is cold, sucking from bottom will reduce root zone temps and slow growth/uptake. You can attach ducking to the low intake and lead the ducting half way up the rooms walls or above canopy level. With an oscillating fan near that, the cool air intake will mix with the warm upper air before falling to the root zone. Alternatively close lower intakes and open a top intake, lead ducting down to same location to ensure better mixing. Pointing the fan/s up slightly will also regulate upper/lower temps to a more comfortable level. If in doubt, prioritize root zone temps to 65/70f. Definitely not lower than 60, keep a thermostat on floor.
Flowki
Well-Known Member
Chunky Stool
Well-Known Member
I'm 4 days from harvest and the dehumidifier is set at 35%.
SchmoeJoe
Well-Known Member
That's about perfect.
60% and up is hight for flower. Especially late flower with dense buds.