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day tripper
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Registered: 04/28/05
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small fan for air circulation?
    #4353335 - 06/30/05 12:49 AM (12 years, 8 months ago)

would a small fan inside of a grow chamber improve air circulation and improve results? im thinking that its not that the fungus uses up all the oxygen in the grow chamber, but that if the air is sitting perfectly still, the co2 that is around, just hangs around. i got the idea to get a small maybe 4" or so fan that osciallates and put it in my PMP. i have a feeling this should improve conditons more than increased fanning would.

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Death Cup
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Re: small fan for air circulation? [Re: extinguishment]
    #4353346 - 06/30/05 12:51 AM (12 years, 8 months ago)

I was thinking that same thing at one time cause Co2 sinks. I think it would.



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OfflineBlue Helix
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Registered: 02/02/03
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Re: small fan for air circulation? [Re: GNIOM1498]
    #4353450 - 06/30/05 01:09 AM (12 years, 8 months ago)

If one moves a lot of air in the fruiting chamber, one should keep the relative humidity higher (probably 95% or over). Evaporation is a function of air movement and relative humidity. I have run with a PC fan in my chamber before at 98% RH and the results were fine. I have run without it too and the results were equally fine.

As for CO2 "sitting around" or "settling" it doesn't do that. If it did, you and I would be dead. You didn't forget that we live in a sea of gases called the atmosphere did you? If CO2 settled to the bottom, we'd all suffocate. There is a process called diffusion that mixes gases up fairly quickly via their own kinetic energy.

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Brainy Smurf

Registered: 05/08/04
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Re: small fan for air circulation? [Re: Blue Helix]
    #4353471 - 06/30/05 01:13 AM (12 years, 8 months ago)

In a PMP, I doubt it very much that itll do much of anything, unless you have polyfil holes in it or something..but if you have an actual PMP, there should be an airpump which would be plenty..

"life is like a drop of rain getting closer and closer to falling into a lake, and then when you hit the lake there is no more rain drop, only the lake."

Growing with bags, start to finish (including my new grain and substrate prep)
Anyone looking to start bulk tubs/mono tubs/shotgun hybrids? Good tubs to use..
How I do grain (old still good tips)
Turn your closet into a fruiting chamber
Casing layer colonization and overlay

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Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

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