The Planted Tank Forum - View Single Post - The Simple DIY CO2 Method
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Old 01-26-2013, 02:24 AM   #9
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Location: mt prospect
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what ever the original recipe was....
now that mine is going I dump 50% of the 2 liter bottle down the drain, add 1 cup brown sugar a pinch of baking soda then refill with h2o direct from the tap-aiming for room temp water. then give it a few good shakes.

I run two bottles and do one bottle each week.
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