Make your aquarium truly unique with the Penn-Plax Zombie Fish Resin Aquarium Ornament. This highly detailed ornament looks fantastic in the light, but it also glows in the dark for nighttime fun. While it’s entertaining for you, the ornament also gives your fish a shelter and a hiding place. It’s made of durable, nontoxic polyresin and is suitable for freshwater and saltwater tanks. It’s alive!