Pelagic Sargassum is a brown to olive green colored algae which belongs to the brown algae family. Other species grow typically on the live rock however, sargassum if the only floating seaweed. They have different types of tissues such as stipes, fronds or fruiting bodies, whereas some of the species are known to have gas-filled bladders. The air bladder of the sargassum helps the seaweed to stay afloat and thus can be closer to sunlight. Many of these species have robust and flexible body with a rough sticky texture, which helps them to withstand strong water currents. Sargassum provides refuge for migratory species and essential habitat for some 120 species of fish and more than 120 species of invertebrates. It’s an important nursery habitat that provides shelter and food for endangered species such as sea turtles and for commercially important species of fish such as tunas.