CaribSea Arag-Alive Fiji Pink Sand 20 Pounds Natural Aragonite Substrate For Marine And Reef Aquariums

Create a thriving marine ecosystem with CaribSea Arag-Alive Fiji Pink Sand. This premium 20-pound aragonite substrate is specially engineered for reef and marine aquariums to replicate an authentic ocean-floor environment. Unlike standard substrates, this sand comes pre-seeded with millions of beneficial heterotrophic and marine bacteria, which helps significantly compress the ammonia cycling process and suppresses new tank syndrome.

Designed for both functional and aesthetic appeal, the Fiji Pink sand features a beautiful tan-white hue with delicate pink speckles. The grain size is carefully calibrated to be small enough to allow for natural sand-sifting behavior by marine fish and invertebrates, yet heavy enough to resist being displaced by powerheads or circulation pumps. Beyond its appearance, this aragonite substrate acts as a biological filter, naturally buffering pH levels and providing essential minerals like calcium and strontium that are critical for the health of corals and invertebrates. This high-purity substrate is free from ash, metals, pesticides, and silica, ensuring a safe foundation for your aquatic life. Perfect for reef enthusiasts looking for stability and rapid biological maturity in their setups, this USA-imported sand is the foundational choice for professional and hobbyist marine keepers alike.