Crazydeal Cichlid Stones Ceramic Aquarium Rock Cave Decoration Home Useful partical Pet Fish Tank Ornament Special design for the African cichlids's existence. Create a natural and green living environment for fish Made from special ceramic material which could filtrate the water. Provides shelter, hiding spots, and spawning sites for cichlids. Material:Ceramic. Size:12cm x 9cm x 6cm - 4.72inch x 3.54inch x 2.36inch.