Adjustable Submersible Pump Water Pump for Aquarium Fountain

★Bottom Water Injection Design- 2 water nozzle for replacement, lowest water level needed: 0.7cm/0.28in, outlet diameter: 13 mm & 16 mm, spray water flow: 1800L/H. With 360°all-round water absorption at the bottom, the pump can effectively remove dirt and impurities found at the bottom of the aquarium, promoting water circulation. ★Adjustable Water Flow- The front of the water pump is equipped with a flow adjustment knob, which can adjust the flow from 0 to 1800L/H. Low needed water level, dry burning protection, to avoid problems caused by insufficient water in your fish breeding tank. ★Ultra-quiet Water Pump- Using ceramic bearing motor, no noise when during use, silent and powerful performance of the water, thereby spraying water potential. ★4 Non-slip Sucker & 2 Nozzle- No need any tools, the fountain pump is easily installed on the glass surface. With handle, just put it in the water and plug it in to use. ★Wide Applications- IP68 waterproof grade, suitable for aquariums,