The imagitarium Petco Brand River Rock Shallow Creek Aquarium Gravel is a great way to add some variety to your aquarium. This gravel features a unique design that helps promote the growth of healthy bacteria and reduce the amount of unhealthy debris in the water. The gravel is made from a durable plastic that is resistant to cracking or breaking. The gravel is also easy to clean and is a great way to keep your aquarium clean and fresh.