Two Little Fishies Red AquaStik nontoxic epoxy allows you to attach corals, live rock, gorgonians, plants and other items to each other or directly to the glass of an aquarium tank. The AquaStik Stone Red Epoxy works on dry, damp, or wet surfaces and cures underwater. AquaStik is non-toxic to fish, invertebrates, aquatic plants, reptiles and small animals. Aquastik can be drilled, sanded, sawed, and machined and is useful for making repairs. It mixes in minutes and hardens in 20 minutes. It is at full strength cure in 24 hours. Unique Red color matches coralline algae perfectly.