An aquarium filter with water stream diversion system and method of use thereof, having an intake, an outlet, and a pump to draw water into the intake and discharge water from the outlet. The system further includes a water stream diversion conduit having a first open end, an opposite second open end, and a fluid channel between the first and second open ends. The first open end of the conduit can releasably connect to the intake of the pump or the outlet of the pump. When the conduit is connected to the outlet of the pump, the water is diverted from the outlet of the pump into the conduit, for discharge from the conduit. When the conduit is connected to the intake of the pump, water is drawn into the conduit and discharged from the conduit into the intake of the pump.
