Scalepl 20mm Primarily designed for use in marine aquariums, but can safely be used in freshwater as well. The blade is of surgical quality and is able to cut through coral and plant tissue with ease. It is ideal for fragging or propagation in reef or planted aquaria. It is an excellent aid in removing dead tissue as well. Material: surgical grade stainless steel Aquarium Type: freshwater and marine Length: 13 cm (5 inches)