AquaStik Red Coralline Epoxy PuttyAquaStik Epoxy Putty from Two Little Fishies is a multipurpose epoxy putty excellent for attaching aquascaping items. Nontoxic epoxy attaches corals, live rock, gorgonians, plants, and other items to each other or directly to glass. Unique Red color matches coralline algae, and the Grey blends with live rock perfectly. Drill, sand, or even saw after fully cured. AquaStik Epoxy Putty will bond to wood, concrete, ceramic, acrylic, metal, and fiberglass. Mixes in 1 minute, hardens in 20 and fully cures in 24 hours. For use in marine and freshwater aquariums, ponds and paludariums, reptile and small animal habitats.