Aqua Medic Reef Construct purple - 2 in 1 is a 2-component epoxy putty for safe and easy attachment of stones and corals in the aquarium. Aqua Medic Reef Construct purple is the solution for many construction problems in fresh- and saltwater aquaria. Stones and other materials can be fixed safely. The 2-component epoxy putty cures easily above and under water.Many invertebrates are imported on very little pieces of rock and cannot be integrated easily into the artificial reef or the live rock. Broken pieces of hard corals get lost in the aquarium when they cannot be fixed. These problems are solved with Aqua Medic Reef Construct purple quickly and safely. The 2 component epoxy putty can be used without problems under water. Aqua Medic Reef Construct purple has a long shelf life, if not mixed. As soon as the components are mixed, the putty gradually hardens. The speed of hardening is depending on the temperature. At normal temperature (20 - 25C) Reef Construct purple gets rock hard in