The Underwater Treasures Area 51 is not your average aquarium ornament! This brightly colored warning sign lets everyone know that you could be harboring intergalactic secrets, and maybe little green men are running around helping to feed the fish in the tank! The piece is weighted so it will not float or be dislodged by a current or flow. These incredibly realistic decorations feature unique textures and are hand crafted and painted using only the highest quality materials. Underwater Treasures ornaments are all non-toxic, and safe for use in both freshwater and saltwater aquariums.