I have never heard that one before...but anything is worth a try but it could cause damage sugar and yeast are used to make pga moonshine. If you have a tent and need c02 i would just order a co2 kit from ebay or planetnatural it is inexpensive with great result. I have refrained from using a tent because of the c02 and oxygen intake and out take. My plants are in a room by themselves and when the lights are on they remain open so it can get more fresh air. Lots of fans too if you want more dense growth. What are you using for your set up soil, nutes, lights, and area? All of this play a factor too. Good luck Kelly I would be carefule experiementing with your medication because you could loose your whole crop and there are a lot of people on the internet that dont even grow and give bad advice trst your medical marijuana growers the most. We are about what goes into the plant and our body. So peace and keep me posted.