The Planted Tank Forum - View Single Post - Fishless cycle help
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post #16 of (permalink) Old 12-07-2012, 06:08 AM
Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
Posts: 11,721
But the bacteria use the carbon from the carbonates. With the KH testing zero, that is what I would add. Carbonates (or bicarbonates). Add what is known to be missing.
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