Looking for high quality, precise, aquarium safe glue? Look no further! This cyanoacrylate glue is perfectly safe for all freshwater and saltwater aquariums once it dries. They include micro-applicators for precise application, and result in an extremely firm bond. This glue is ideal for holding moss or plants to hardscape, holding hardscape together (like preventing logs from floating up), or practically anything else you might need in your aquarium.