Penn-Plax Natural Tank Decor Aquarium Ornament, 2 Count

The Penn-Plax Natural Tank Decor Aquarium Ornament set makes a natural addition to your aquarium. These stone replicas are highly realistic and would occur naturally in your fishy friends’ environment. You can use them to create passageways to reduce boredom and aggression in your fish. They’re made of durable and nontoxic polyresin and are suitable for both freshwater and saltwater tanks.