hygger Intelligent Wave Maker for Aquarium, Saltwater Freshwater Circulation Pump Adjustable 6 Waves/Night/Feed/Wireless Connection Mode, Magnetic Holder Display Controller Memory Function (50W)Brand: hygger Color: Black Features: 6 WAVE MAKER MODES: Constant Mode, continuous fixed waveform output water flow. Pulse Mode, motor quickly pushes out the wave with the max power, and then drops to the mini power, and the cycle repeats. Tide Mode, motor slowly reaches the max speed and then slowly decreases, the rise and fall times are roughly the same 6 WAVE MAKER MODES: Random Mode, the flow rate has no standard rhythm, runs randomly, forming