Co2

hi all and thanks for the help in advance. my question is will i need co2 for a room 5x5x8? because i was on youtube watching a vid and he said that co2 doesn't really help in small grow areas. is there any truth to that? and dont know if this helps but i will be vegging with four t12 lights and flowering with hps 400 watters, the strain will be northern lights in a homeade bubbleponic system planning on 4 or 5 plants. please give help

You can invest in a c02 system, and you will see great results (some say up to 40% more yield) the small room has nothing to do with it.... There are a few cheap ways to do it which I would recommend you looking in the DIY section. I don't think I would invest in a system until you're pretty comfortable with growing and have the money to do it.

thanks jondog but i already have a co2 tank i was just wondering if i would be able to see the difference in it when grown. by the way you said it will increase yields up to 40% is this what you have seen using c02 or something read?

do it yourself

http://https://www.rollitup.org/how-to-grow-marijuana/f-57.html