The Planted Tank Forum - View Single Post - How many of you use the DIY jello co2 model?
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Old 09-23-2008, 05:56 PM   #7
h2osanity
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I find adding 4 tbsp uncooked rice makes the mixture last as well, like 4-5 weeks in a 3 l jug. I then use the resulting alcohol mixture to dump on weeds in my driveway
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