Glue live rock and coral fragments in aquarium; cures to the color (mauve) of coralline algae, blending in almost immediately. Versatile 2 part underwater epoxy sets and adheres to wet aquarium rocks, live sps corals, clam shells and dead coral branches. Sticks to glass, plastic, rock, metal, and rubber pond liners. Sculpt and set moulded form. Totally inert when used properly; safe in conjunction with aquarium corals and fish. Available in slate gray for marine or freshwater aquariums and ponds.