Caribsea Eco-Planted Freshwater Black Substrate for Planted Aquariums 20 lb

Bring a bit of the Caribbean home with CaribSea, Inc., maker of environmental accessories for aquariums. CaribSea Eco Complete Planted Black Aquarium Substrate is rich basaltic volcanic soil containing iron, calcium, magnesium, potassium, sulfur and over 25 other nourishing elements. CaribSea Eco Complete Planted Black Aquarium Substrate has highly porous spherical grains for optimum diffusion, establishing biological balance, this substrate has live heterotrophic bacteria to convert fish waste into natural food for aquatic plants.