John LOQUE
Member
High !
I have got a CO2 meter for several years, but the minimum value it shows is 350 ppm. So i don't know how much under 350 ppm it is really.
So my outside air is 350 ppm or under, that's all i know...
But i thought we were far above 400 ppm for a while now because of the pollution...
I don't think my plants are lacking of CO2 because they grow well, maybe the meter is wrong...
Have you seen grow rooms at 200 ppm because plants have consumed all the CO2?
Bye
I have got a CO2 meter for several years, but the minimum value it shows is 350 ppm. So i don't know how much under 350 ppm it is really.
So my outside air is 350 ppm or under, that's all i know...
But i thought we were far above 400 ppm for a while now because of the pollution...
I don't think my plants are lacking of CO2 because they grow well, maybe the meter is wrong...
Have you seen grow rooms at 200 ppm because plants have consumed all the CO2?
Bye