CaribSea Ocean Direct Natural Live Sand – Aragonite, 20 lb is natural live aragonite sand packed in real seawater to carry living bacteria home. The grain size and natural coloration are chosen for aquariums, with no paints, dyes, or coatings that can leach into the water.
Pour it in to build a bed a couple of inches deep, then add water and let the tank clear. It supports rooted plants and burrowing fish in freshwater setups and anchors the biological filter in reef and marine systems.
CaribSea has produced aquarium substrates from Fort Pierce, Florida for roughly 50 years and is a standard source of sands, gravels, and reef substrates for hobbyists.
