some say you get up to 30% more with c02 I gust got my gen 1 system
and am slowly moving up the ppm, I started at 1000ppm and every 2 weeks
I move it up 200ppm, so far Ive seen a great amout in new growth not 30%
but my goal is 1800ppm. theres a point where you can go to much and waist
c02 hens the slowly moving up to find the sweet spot, even in a cycled
room with fresh air coming in and out you can boast your system up between
cycles just to give it the extra push its worth it.