Reef safe Kick Ich is a water treatment for the control of ich in marine and freshwater aquaria. It has been scientifically formulated to eliminate the free swimming; infectious stage of the ich life cycle while being safe for all freshwater and marine aquaria. Kick Ich has a long shelf life at room temperature and is supplied in easy to use; self dosing bottles. Safe for all fish; corals; invertebrates and macroalgae; as well as the facultative anaerobes and nitrifying bacteria essential to biologic filtration. Active ingredient: 5-nitroimidazoles Safe to use in combination with Rally.