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NOTE: Because of the heavy nature of sands. These sands will be shipped out via the most economical way, which may be UPS Ground or USPS, but will normally be USPS priority flat rate.
Seaflor Special Grade Reef Sand" - 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. This is a very versatile product! Grain size 1.0 - 2.0 mm.