The biOrb Marble Pebble Set is a perfect addition to your underwater world. These marble decorations are sure to awaken your senses and inspire your creativity. This set includes a collection of white marble pebbles of varying shapes and sizes that add texture and levels to the foreground of your aquarium, while accenting the bottom of your aquarium. The solid marble of this decor is non-toxic, easy to clean, and durable. Simply remove, rinse, and return the decorations to your aquarium to maintain their pristine appearance. With a convenient size that fits in any biOrb aquarium, you can easily incorporate these pebbles into your aquatic environment. Plus, they are compatible with both freshwater and saltwater setups, allowing you to create your dream underwater oasis regardless of your preference.