Seahorse Aquariums present the JBL Haru 80ml. Bonds anything to anything (except PP and PE plastics). It is used for optimal adhesion under water and does not require emptying of the tank. JBL Haru can be used for leaking aquariums, fixing of decorative materials, securing stones from falling over, fastening of corals on stones, fastening of different materials to one another (e.g., wood on glass) etc. The black polymer-based adhesive and sealant which is odour-free and non-toxic, which is permanently elastic and can even harden under water. It comes in a resealable tube and includes a multi-purpose tip. Also suited for industrial sealing jobs.