Seachem Reef Glue 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. Seachem Reef Glue can be used for any aquascaping in freshwater or saltwater aquariums, or for any plastics repairs. Seachem Reef Glue won't dry up in the tube, it comes in an aluminum tube for extended stability beyond products contained in plastic bottles.