Have you ever heard of "excellofiz". They're tablets that you put in water and it realeases co2 into the air. Not as cheap as club soda or candles, but a whole lot cheaper than a co2 system.

http://www.ecogrow.com/index.cfm/pro...id/0/home.html
GREENvision Reviewed by GREENvision on . Help me with a CO2 Question Okay, I saw on a grow video (from pot.tv) that if you cant afford a CO2 tank (which I cant) the next bext thing is to get Club Soda and a spray bottle. My question is this: Once flowering begins, do you mist the club soda onto the flowers also, or just the fan leaves ? Please help :thumbsup: Rating: 5