This hiding place is a good cave for fish to breed, play and rest. Fighters, shrimps, guppies, snails will love it. Suitable for small fish, easy to clean, good for breeding nitrifying bacteria which can help improve water. Ceramic material with granite pattern, safe and non-toxic to fish. No fading, no smell. No sharp or rough edges, no risk of scratching the fins. A nice decorative piece to create a natural and lively environment for your aquarium.