Bless your fish with the Penn Plax Seashore Cathedral Aquarium Decor - Medium. This fantastically detailed cathedral offers fish a perfect spot to hide as well as an obstacle to swim around. It"s beautifully crafted of non-toxic resin. * Constructed form durable resin * Designed for both fresh and salt water aquariums * Non-toxic and fish-safe * Provides fish with an obstacle to swim around * Dimensions: 7L x 9W x 5H in.