Seachem Reef Glue This is a superior cyanoacrylate gel for gluing and mounting coral frags and colonies to reef rock or plugs. It bonds within seconds and has excellent control, hold and durability characteristics. It can even be used underwater! Reef Glue can be used for any aquascaping in freshwater or saltwater aquariums or for any plastics repairs. Reef Glue comes is in an aluminum tube for extended stability life beyond products contained in plastic bottles - it won\'t dry up in the tube, this is a massive bonus! Can also be used in Freshwater applications. Sizes Available: -20g Tube