Aqua Natural Marine Aragonite is a high-purity (up to 98%), sustainably sourced calcium carbonate substrate harvested from the Bahamas. It is designed for marine, reef, and African Cichlid aquariums to help buffer pH and provide essential calcium. 
 
 
Key Specifications & Data
Material: 100% Genuine Oolitic (egg-shaped) Aragonite.
Composition: Up to 98% Calcium Carbonate ().
Purity: Free of tar, harmful organics, and impurities.
Buffering Capacity: Maintains a natural pH of ~8.2.
Surface Area: Over 1 million per kg, providing substantial space for beneficial denitrifying bacteria.
Physical Properties: White to greyish in color, ooitic (smooth), and generally dust-free.
Source: Ethically harvested from The Bahamas. 
 
Key Benefits
Superior Buffering: Keeps pH stable, reducing the need for chemical additives.
Biological Filtration: Large surface area supports nitrifying and denitrifying bacteria.
Sustainability: Biogenic material (created by living organisms).
Versatility: Suitable for reef tanks, fish-only tanks, refugium's, and plenum systems. 
 
Usage Instructions
Rinsing: Rinse well in a bucket with clean water until the overflow turns from milky to light cloudy.
Placement: Place in the aquarium before filling to avoid excessive cloudiness.
Application: Ideal for a 1–2-inch shallow sand bed or deeper for deep sand beds.
Cloudiness: Initial, temporary cloudiness is normal and will clear after a few hours of filtration.