Natures Ocean Hawaiian Puka Shells 3,5 – 5mm 2x 6,8kg

Natures Ocean Hawaiian Puka Shells 3,5 – 5mm 2x 6,8kg

Ideal for reef system tank bottoms, denitrifying anaerobic beds, extremely high surface area filter media.
Aragonite Benefits:
Reduces Nitrates. Maintain pH. Increases Carbonate Hardness. Provide Marine Trace Elements. Pre-washed Minimum Rinse Required. 100% From The Ocean Floor. Heat Sterilized. Ideal for culturing Live sand.