topfuel29 Well-Known Member Nov 7, 2013 #2 yah it's BS, the CO2 dissipates into the air, you need so many PPM of CO2 for an extended period of time for it to work.
yah it's BS, the CO2 dissipates into the air, you need so many PPM of CO2 for an extended period of time for it to work.
aussie (OZ) grower Active Member Nov 7, 2013 #3 Yup definately grade A lies, will not be enough to make a difference