Features:>> Imitation of the natural zoology.>> Safe and reliable quality with device in side to prevent overheat.>> Excellently eliminate protein and organic com-pounds.>> Assemble and disassemble easily for cleaning.>> Integration design, multiple patented technology.Benefits:1. This pump adopts permanent-magnet synchronous motor for driving.2. High efficiency, energy-saving and long service lifetime.3. Analog of nature ecological system design.4. Equipped with over-heated protection device, safe and reliable.5. The effect to separate and discharge macromolecule organic substance such as protein is excellent and the oxygen-dissolving capacity is high.6. Easy disassembly/assembly and easy cleaning.7. Hang-on tank mounting bracket fits most of thick tank mounting.