- Also known as "Oolitic sand", this product is ideal for shallower beds, allowing denitrification in as little as 1" depth.
- The fine grain size can pass easily through the gills of gobys and other sand-sifting organisms. The smooth round grains are gentle to soft bellied sharks and rays.
- White in color and metal free, no ash or silica.
- Approximately 0.2 - 1.2mm diameter grain size.
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