Nature's Ocean Atlantic Crushed Coral Aragonite Aquarium Saltwater Sand Substrate #8 - 20 Lbs - 2 Pack

Nature’s Ocean Atlantic Crushed Coral #8 (20 lb x 2) – A case of two 20-pound bags of premium Atlantic crushed coral substrate for marine aquariums. Sourced from natural ocean coral, this aragonite substrate helps buffer aquarium water to maintain stable pH and carbonate hardness levels ideal for saltwater fish and reef tanks. The #8 grade features medium-sized grains that allow good water flow and prevent debris buildup, while also providing surface area for beneficial bacteria to colonize. Its light-colored, natural look enhances the beauty of the tank and reflects light to brighten the aquarium. Ideal for fish-only setups or as a base layer under live sand, it helps recreate a natural seabed environment and supports healthy, vibrant marine life.