Visit the SubstrateSource Store

Cholla aquarium wood tubes are both aesthetic and functional. They create a natural look while also stimulating growth of biofilm, which provides a source of food to shrimp and baby fish. Great for shrimp tanks and hermit crabs; they will provide excellent hiding places for your livestock and can be used as a base to attach different mosses, aquatic plants, or marimo balls. Consists of all-natural, organic dried husk of the Cholla cactus with a porous skeleton-like structure and soft texture.