I am not sure about the yeast co2, but Co2 increases yield dramaticly, I saw a 12 percent shift up on average when I added it to my room, but I have a Co2 diffuser system, so cannot answer anything about the yeast, but it makes sense.
llamaman666 Reviewed by llamaman666 on . CO2. Is it worth it Hi peops, Just wondering if you experienced growers out there think co2 makes a big difference to yield. I will be starting my second grow in a couple of weeks and have read Encatuse's link on how to make a "yeast co2 maker" and it seems quite simple but will it give me much more bud. Cheers :D Rating: 5