【Cross-Flow Technology】: This cross flow pumps generate soft waves and the waves are spread 360 degrees. It creates a water flow similar to real ocean 【4 Levels of Adjustment】: Four wave making modes to switch: constant current, pulse, tide, and random wave. Also it can easily blow away debris from the bottom of the fish tank. 【Constant Temperature】: The circulation pump can drive the flow of water in the entire tank, making the water temperature more uniform and the fish not getting sick. 【Magnet Base】: Powerhead magnet has an extremely strong magnetic force and can be attached to fish tanks. Stable and will not fall. 【Service:We attach great importance to our customers' shopping experience. If you have any questions, please feel free to contact us, we will reply you as soon as possible within 24 hours, Manufacturer: JMOUZHG