Natures Ocean Hawaiian Puka Shells

Hawaiian Puka Shell is premium aragonite reef substrate harvested from the ocean floor, pre-washed and heat treated for convenience. The unique composition reduces nitrates, maintains pH and increases ...

Natures Ocean Hawaiian Puka Shells

Hawaiian Puka Shell is premium aragonite reef substrate harvested from the ocean floor, pre-washed and heat treated for convenience. The unique composition reduces nitrates, maintains pH and increases carbonate hardness. Ideal for aquarium tank bottoms, denitrifying anaerobic filters and filter media with an extremely large surface area. Hawaiian Puka Shells has natural ocean Puka shells with a grain size of 3.5 to 5 mm

Ideal for aquarium bottoms of reef systems, denitrifying anaerobic beds or as filter media with extremely large surface area.

Aragonite Benefits:

• Reduces nitrates. Maintain pH. Increases carbonate hardness. Provides maritime trace elements.
• Pre-washed minimal rinse required.
• 100% of the ocean floor. Heat sterilized.