ZKSJ Mini Aquarium Wavemaker 790GPH (3000L/H) Water Circulation Pump, 9W DC 12V with Magnetic DC Power Head, for saltwater tanks up to 18 inches and 10 15 20 gallons

For water tanks up to 20 gallons: simple and powerful. 1.57 inches in diameter and 1.57 inches in length. It can be easily hidden in the corner of the tank. Maximum flow rate is 790GPH. recommended for freshwater and seawater tanks up to 20 gallons.. Customized current: rated 9W, DC 12V, smart wave maker with built-in controller to simulate sunrise and sunset, day and night, imitate waves by setting various flow patterns, power and frequency; customize an ideal natural current for your corals to thrive with the ZKSJ mini power controller.. intelligent controller: with the controller, you can set the pulse of the wave pump and the intensity of the waves, the flow pattern and the automatic shutdown of the 10-minute feeding mode;. Quiet operation: SINE WAVE technology. Super quiet, less than 20 decibels, the wave pump has four preset wave modes: Classic Wave, Nutrient Transfer Wave, Constant Flow, and Random Wave.. MAGNETIC INSTALLATION: Sturdy magnet suction cup base can be positioned anywhere, making installation, adjustment, and removal easy; read the user manual for installation and setup.