CO2 Poisoning the Spidermites

L

Lotus800

Member
Hi everyone,

Just couple of questions about CO2 poisoning with a CO2 tank and regulator:

Should I leave exhuast vent (fan and light off, of course) so that the CO2 can raise and push out oxygen through exhuast vent when CO2 tank is running and building up at bottom of sealed grow cab?

With this first grow, I taped both intake and exhuast vents. But I think to tape the exhuast vent above plants is a mistake because there is no place for oxygen to escape while CO2 is being injected inside the cab and then sink to floor. I should have taped just intake vent by floor only.

I believe I should have all circulation fans inside off also so that CO2 don't get mixed with O2.

Thanks!​
 
H2grOw

H2grOw

Active Member
Great idea using CO2 to suffocate mites. My thought is that you are correct about having no circulation inside the cabinet. Co2 is heavier than air and will settle to the bottom. The rest of the air will escape out of the uppermost opening. A candle held just out side and lower than the vent will be put out by the CO2 when it is full. Since your cabinet is sealed, you can turn off the gas and let it do its thing. I wonder how long it takes for a mite to suffocate.... Sure you already know this, but keep the room your cabinet is in well ventilated while doing this for safety, after all its only the bugs you want to kill.
 
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