CaribSea Geo-Marine Florida Crushed Coral Substrate 1ea/15 lb

Provide up to 25X the buffering power of other crushed corals, dolomite, and oyster shell with CaribSea Flordia Crushed Coral containing aragonite! Combat chronic pH problems and maximize water purifying bacteria surface area with this product that can increase bioload by 50% without ever needing to be replaced. When used with calcium, carbonate buffer and strontium up to 10,000 ppm are also provided. Grain size: 2.0 -5.5mm, just lightly rinse before use.

100%aragonite supports proper ph grain size reduces built up detritus re-create natural reef environments made in the USA