May 25, 2009 #1 D deffedtx New Member This will be my first grow. I have a question about co2.If I can draw outside air in will I have use co2 or will the outside air have enough in it? ( I live in a rural area) Any help will be appreciated.
This will be my first grow. I have a question about co2.If I can draw outside air in will I have use co2 or will the outside air have enough in it? ( I live in a rural area) Any help will be appreciated.
