Effortless Stability for Your Nano Aquarium

• Precision Optical Sensor for Consistent Water Levels
• High-Performance, Low-Voltage Dosing Pump
• Recommended for Tanks up to 66 Gallons
• Easy & Strong Magnetic Mounting
• Built with Durable, High-Quality Materials

The Tunze Osmolator® 3 Nano Auto Top Off System takes the hassle out of maintaining stable water levels in your nano aquarium. Designed specifically for tanks up to 66 gallons, this compact and reliable ATO uses a precision optical sensor to detect water levels with accuracy up to 0.5 mm. This means your aquarium's salinity and water levels stay stable.

Equipped with a high-performance Turbelle® High Jet 5030 dosing pump, the Osmolator 3 Nano quietly handles top-off tasks with a maximum delivery height of up to 20 feet. The pump is designed with integrated protection against dry running and blockages, making it dependable and efficient. You can choose from two dosing durations for customized top-offs that best suit your setup, while the included magnetic holder offers an easy mount option for glass up to 12 mm thick.

This robust auto top-off system comes ready to install with everything you need, from the 12V power supply to the 3-meter hose and hose holder. With Tunze’s commitment to quality backed by a 5-year warranty, you can count on the Osmolator 3 Nano Auto Top Off System to keep your aquarium care streamlined and your nano tank thriving.

Specifications

Recommended Aquarium Size: Up to 66 Gallons

Max Pump Head Height: 6.2 m (20.3 ft)

Max Glass Thickness (Sensor): 12mm (1/2")

Max Glass Thickness (Tube Holder): 22mm (0.87")

Power Supply: 12V

Warranty: 5-Year Manufacturer Warranty

What's Included?

Osmolator® 3 Nano Auto Top Off System

12V Power Supply

Turbelle® High Jet 5030 Pump

3 Meter Tubing

Tube Holder

Protective Cover for Sensor