Aqua Culture Mossy Skull Aquarium Decoration, 5" This Aqua Culture Mossy Skull Aquarium Decoration is a fun and quirky addition to your aquarium. It is shaped just like a long-submerged pirate skull, with large openings that your fish can swim through and around. With openings in the eyes mouth, and skull pan your fish will have no shortage of places to glide and hide. It adds a fun and adventurous element to your aquarium. Strategically placed realistic moss will move with the water's current and will soon become the favorite hangout for your fish. This mossy 5" cranium provides an excellent hangout for nervous or timid marine life who like having a cozy underwater haven. Elevate the decor of your aquarium with the Aqua Culture Mossy Skull Aquarium Decoration.