CaribSea Super Naturals Midnight River

CaribSea Super Naturals Aquascapes Freshwater Substrate contains fish-friendly, smooth, sand-sized grains. The one size fits all prevents waste, food and other debris from accumulating in the substrate bed and reduces nitrates. All natural, pH neutral, no paint, no dye, no coating. Includes a pre-measured dose of beneficial bacteria in your tank and helps start the cycling process.