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08-14-2007, 11:37 PM #15Senior Member
A new way to co2!!!... Maybe?
Keep in mind, CO2 is one carbon and two oxygens. Long hydrocarbons, like kerosene and wax, have a formula of roughly H2C, essentially two hydrogens for each carbon. Carbon has an approximate atomic weight of 12, oxygen 18, and hydrogen 1. If you buy five pounds of CO2, you get exactly that, five pounds. If you get five pounds of wax or kerosene and burn it, then for each H2C unit, which weighs 14 atomic mass units, you get one molecule of CO2, which weighs 48 atomic mass units. I'm assuming your tank contains about 5 pounds of CO2. If you can get 5 pounds of wax for less than 20 dollars (you can) and then make it into a big-ass candle, this will net you about 17 pounds of CO2. Of course, there are hazards associated with fire, but you're pretty safe as long as there are no gas leaks and you make sure to keep it in a nice metal container with some sort of cover on it.
If you don't want to pay money and you don't want to risk burning something, you can always just let something rot in your grow area. That attracts mold though, which can be bad for buds. Or you can just mix some compost in with your soil. Compost in your soil will eventually release more than its weight in CO2 as it rots.
Still, as many have said, if you have decent ventilation, and you haven't fine-tuned your fertilizer, light, temperatures, etc, you won't notice a huge difference if you supplement your CO2.