Our Moon Stone Ecoscape rock is not only an artistic choice for the home aquarium, but also a safe and practical choice for many biotopic displays. As the name implies, this is an extremely porous rock with deep caves and caverns. This creates great hiding places for both shy and aggressive fish alike. In particular, it is ideal for recreating biotopes for Rift Lake African cichlids, and has an inert crystalline makeup that will not effect pH or hardness. It comes in a variety of shapes and sizes handpicked by the Ecoscape team to give your aquarium a unique look.