chewberto
Well-Known Member
Dont give bad information... natural air is 300-400 ppm co2 we can now offer 1500 to plants to accelerate your grow....
I don't know who gave u that info but u couldn't be more wrong . The CO2 levels in outside air having been rising at a fast pace and yeah if u open a tank all the way up and dump it into the room the levels can be higher but if u r running it in tubing to spread throughout the room there is no way u can obtain the optimal CO2 for ur plants that u get from bringing in outside air