The Planted Tank Forum - View Single Post - How to make DIY root fertilizer tablets with clay
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Old 08-13-2012, 05:55 PM   #2
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You can use a wine bottle if you don't want to mess up for rolling pin. Or put wax paper between the clay & rolling pin.

I wonder what happens if you really fire in a kiln. It definitely won't break apart in water but it might seal the ferts too much or will it be like osmocote.
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