Aragonite, purposely engineered and free of impurities such as ash, metals, pesticides, and silica; allows you to create a safe and beautiful environment for your fish and invertebrates.This grade of aragonite is specifically engineered for plenum type nitrate reducing beds or anywhere a deeper bed is called for. The pore water space created by the precision grading also allows maximum pH support and dissolution of calcium carbonate.
Typical Size: 1.0 – 2.0mm
Average Density: 85 pounds per cubic foot
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