Penn-Plax Sunken Battleship Fish Aquarium Ornament - MediumAdd the Penn Plax Sunken Battleship Aquarium Ornament to your aquarium to increase the visual appeal while providing shelter for your fish. This quality resin decoration is safe for both freshwater and saltwater environments. It will certainly liven up any tank with its colorful design and intricate detail, especially if youre going for a nautical or shipwreck theme. Great for salt water or fresh water Adds a unique ship wreck theme to your aquarium