Sicce Voyager HP 9 Stream Pump 3600 gph Algae Control These helpful indicators can be Optimal levels of protein These helpful indicators can be used to mark the last time maintenance or media changes were performed frameless glass aquarium design topped off with a decorative removable plant and clear aquarium cover The pump uses a soundless quick start system and also has a preventative grid guard to eliminate any chance of your aquatic pets finding their way into the pump system The Sicce Voyager 5 Stream Pump has a flexible 180 degree vertical angle and 360 degree circular rotation for optimum freedom when positioning the unit inside of the tank