The Avatar Wall Rocks offers a totally different take on aquascaping within the aquarium! It is a pumice stone which can be attached to the back, sides, or the base of the aquarium via a suction cup. You can attach most aquarium mosses and other bare-roots aquarium plants such as Anubias and Java Fern to the rock which enables you to create a wall of plants across the back, sides, or base of your aquarium. The pumice stone is pH neutral so it will not affect the parameters of the water.