Ruby Reef ARR11126 Kick-Ich Aquarium Water Treatment, 16-Ounce Kick-Ich is a copper free water treatment for the control and elimination of ich in marine and freshwater aquaria Safe for all fish, corals, invertebrates and macro algae, as well as the facultative anaerobes and nitrifying bacteria Kick-Ich is highly recommended to be used in combination with Rally Scientifically formulated to interrupt free swimming, infectious stage of the ich lifecycle while being safe for all freshwater and marine aquaria Available in 16-ounce refill which treats 40-gallon No need to further stress or damage fish by removing fish from the display tank for treatment in a hospital tank. No harsh or dangerous and toxic chemicals Easy 3 step instructions Biodegradable. No need for removal.