The Fluval Sea Aquatic Epoxy Stick provides exceptional bonding strength in a variety of aquascaping applications, including attaching rock structures, corals and certain aquatic plants to decorative surfaces. The epoxy is designed for use in freshwater and marine aquariums and bonds and cures underwater. It is easy to knead by hand and completely cures in 24 hours in water and in 48 hours out of water. Fluval Sea Aquatic Epoxy Stick is non-toxic and safe for aquatic plants, fish and reptiles. The Fluval Sea Epoxy Stick can also be used in ponds, paludariums, reptile and small animal habitats.