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Old 10-02-2012, 01:24 AM   #8
Diana
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There are very small boxes of baking soda, and it is pretty cheap.
You might be able to cut that recipe in half, but I would not trust the measurements for a smaller batch than that.

If you belong to a planted tank club why not do this once at a group meeting, and share out the results, then each time you meet a different person brings enough to share with all of you.
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