Carib Sea Aragonite Reef Sand For Aquarium 40 Pound Natural Substrate For Marine And Freshwater Tanks

Create a thriving aquatic environment with Carib Sea Aragonite Reef Sand. This premium, forty-pound substrate is engineered from one hundred percent natural aragonite, making it an essential foundation for both marine reef tanks and hard-water freshwater setups, such as African cichlid habitats. Designed for optimal tank health, this substrate works to naturally stabilize water pH levels around 8.2 while promoting the dissolution of calcium carbonate, which is vital for the growth of healthy corals and beneficial biological processes.

The grain size, precision-graded between 1.0 and 2.0 millimeters, is specifically chosen to resist displacement by powerheads while effectively minimizing the buildup of detritus within the substrate bed. By providing a clean and chemically stable foundation, this sand supports a more natural and balanced ecosystem for your fish and invertebrates. Free from unwanted impurities like ash, metals, pesticides, and silica, it provides a safe, high-quality base that you can rely on for long-term aquarium maintenance. Whether you are building a new reef system or refreshing an established tank, this USA-imported substrate offers the professional-grade performance needed to maintain water quality and biological stability.