From reef cement, 2-components glue to gel glue. Here you will find everything dealing with the fixing of rocks and frags in the marine aquarium. Coral glue on gel base is suitable for gluing frags outside the aquarium. After a short hardening time, this can be used again in the aquarium. Reef cement or reef mortar is very good for sticking the rocks and pillars both outside- and inside the aquarium. Also huge coral stocks can be placed in the reef. Two components of glue are best suited for sticking the corals and frags together under water. On our online shop you will find a matching coral glue for every purpose.