Zoo Med Aquatic River Pebbles are all-natural river rocks to make your turtle feel right at home. These prewashed pebbles are ready to use and great for creating a naturalistic look in your pets aquarium or terrarium. Aquatic River Pebbles are easy to clean and reusable, so you'll never run out! Natural pebble substrate for aquatic turtle habitats Prewashed and ready to use Safe for all sizes of aquatic turtles Great for Red-Eared Sliders, Map Turtles, Painted Turtles, Musk Turtles, Cooters and other species of fully aquatic turtles. Product of the USA. IMPORTANT: NOT for softshell turtles! For these pets, use a soft substrate such as Zoo Med ReptiSand.