The Underwater Treasures Red Rock Hideout ornament sports an incredibly nature look, with sporadic moss cover and rough textured, red hued rock, this ornament provides an exceptionally unique visual effect and will become a standout feature in your aquarium. The hollow body of the rock hideout offers ample space for fish and invertebrates to relax and rest in a dark quiet space away from the hustle and bustle of open water. 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.