Check the listing for details. VIVOSUN 10W 1000GPH Aquarium Wave Maker Circulation Pump w/ Controller 15-30gal. Condition: New. Listed at 50.39 USD. About this item Customizable Water Movement: Featuring a multifunctional external controller, this aquarium wave maker allows you to adjust wave modes (4 options), frequency, and flow rate; Designed to mimic natural water flow, it creates a comfortable environment tailored to your aquatic inhabitants Magnetic Base & Adjustable Head: The strong magnetic base enables secure and flexible wall installation; The integrated silicone mats minimize vibration and recoil; The 120° vertically adjustable head and 360° adjustable base promote comprehensive water circulation throughout the tank; Recommend for 15-30 Gallon aquariums with glass ≤10mm (0.4") thick Powerful & Quiet: Powered by a premium motor, this pump delivers a maximum flow rate of 1000 GPH with minimal noise output; The integrated light sensor, activated via the Light Mode button, detects ambient light changes, and enables the wave maker to automatically alternate between the freely customizable day mode and a quieter night mode Convenient Feeding Mode: Pressing and holding the Speed/Feed button activates a 10-minute feeding mode, indicated by a green light; The pump temporarily pauses, allowing for neat fish feeding without water disturbance, then automatically resumes operation after the 10-minute interval Versatile Applications: Suitable for both freshwater and saltwater environments, this aquarium circulation pump simulates natural water currents; It oxygenates the water, dislodges fish waste and food residues from the bottom of the tank, promotes water circulation, increases fish activity, which helps maintain their natural shape and health