I was thinking of making a c02 system out of the elite mini filter (using it as a reactor) and using the yeast bottle as a diffuser. the cost of supplies is what is making me weary of trying it. if i got all the supplies, would anyone here want to help me out repaying some of the cost? i could order you the elite mini and modify it for the reactor, and i could make the diy yeast bottles as well. so basically i can build you the entire kit. i would probably sell each kit for like 25 dollars shipped. would anyone want to buy one? its a complete c02 system for your tank to make your plants look very nice and healthy.