Does anyone have a quatitative description of 'good' air circulation?
I have a question about air circulation. I just got my first orchids and I want to house them in my terrarium with ferns.
How much circulation is considered as 'good' circulation? Is it quantifiable? Can one create too much circulation?
I see photos where there are one or two 12V CPU fans for a 1.5'x1'x1' set up. My terrarium is 4'x2'x2' and I would like to find out how feasible is it to house these wonderful orchids in the terrarium.
Cheers.
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