Pure Water Pebbles Premium Freshwater Substrates * Natural Decorative Gravel * 100% Acrylic Coating, Colorfast * Non-toxic, will not alter the chemistry of your aquarium water * Recommended Uses: Fresh & Saltwater Aquariums, Ponds, Terrariums, Gardens, Potted Plants, Vases, Ash Trays, Crafts & Hobbies