Florida Crushed Coral, Coarse GradeThis crushed coral with aragonite provides up to 25 times the buffering power of other crushed corals, dolomite and oyster shell. Eliminate chronic pH problems and provide maximum surface area for bacteria. Allows an increase in bio load by up to 50%, and it never needs replacement. International customers: Check with your customs agent to determine whether this product can be shipped to your country.
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