Flexzion Aquarium Circulation Pump Wave Maker 800/1300/1600/3200 GPH Submersible 360 Degree Rotation Powerhead with Magnetic Mount Base for Reef Fishes Corals Other Aquatics Tank Totally submersible and oil-free motor to avoid pollution to the living circumstance Magnet-suction cup support for free positioning in aquariums Wide-spread range just like an wishy-washy ocean wave High waterproof performance ensures safety and reliability; 360 degree rotation to adjust flow in any direction Minimum vibration with quiet operation. Requires extremely low energy consuming