Give your pet a place to hide and climb with the Penn-Plax Shale Ledge Aquarium & Terrarium Decor. This decorative piece is perfect for small fish and reptiles. It’s expertly hand-painted to give it a beautiful and realistic rock formation finish. Your pet can go in the cave to rest, and if you have a reptile, he can climb up the steps and lounge on the flat ledges. This faux rock formation is the perfect way to liven up any aquarium or terrarium, and it adds some variety to your companion’s living space.