listen to this, a five gallon bucket , 2 five pound bags of sugar, . 3 bags of (active yeast). warm water , not hot about 80 f follow my directions, put water into bucket, and into a bowl, put yeast into the bowl of water, let it sit for 2 minits or more stir it up, put sugar into the bucket, stir the fuck out of it, no clumps, slowly pore the bowl of yeast water into the bucke you should start seeing the yeast eating the sugar with in 30 minits or less it swims around . and look you will see co2 being made small bubbles . this is the best formula I have found to much sugar, yeast dyes. not enough the yeast starves, you ( cant) over do the yeast the more the better, don't be stingy put some into the bucket, this trick works very well . if your room is sealed you will get a ppm over 800 co2 with in a day, that is a very large difference in yield even only 800 ppm will make a huge difference, what I use in the summer from my co2 generator , heat, issues, you can do more buckets , but 1 will get it going . 2 is for 12 by 12 rooms or pore sealed room, trust me try it thank me later ,