Zoo Med Aquatic River PebblesZoo 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