Tunze Osmolator® 3 Nano – Automatic Water Top-Up for Aquariums up to 250L

The Tunze Osmolator® 3 Nano is a compact, precise, and safe solution for maintaining a stable water level in aquariums of up to 250 litres. Ideal for under-cabinet filtration systems or direct mounting on the edge of the aquarium, it offers simple installation and reliable performance with advanced technology.

Smart Control with a Single Sensor

• High-precision optical sensor: Detects the water level with 0.5 mm accuracy; resistant to air bubbles, deposits, and scratches.
• Adjustable dosing time: Two dosing time options allow adjustment according to the size of the aquarium.
• Secure mounting: Magnetic holder compatible with glass up to 12 mm thick. Hose holder supports up to 22 mm.
• Simple installation: Complete ready-to-use package (excluding reservoir), no software or configuration required.

High-Tech Dosing Pump

• Turbelle® High Jet 5030: Extremely quiet pump using real three-phase sine wave technology.
• Reliable performance: Maximum pumping height of up to 6.2 metres with built-in dry-run and blockage protection.

Package Contents

• Turbelle® High Jet 5030 dosing pump
• Optical sensor with protective cover
• 12V DC power supply – Safe low-voltage operation
• PU hose (3 metres): Manufactured in Germany, hydrolysis-resistant, antimicrobial, flexible, and kink-resistant
• Magnetic holder and hose holder: Secure mounting for glass up to 12 mm

Tunze Quality – Built to Last

• 5-year warranty: Automatically included with no registration or red tape
• Made in Germany: Assembled and tested at Tunze headquarters to the highest standards of quality

Tunze Osmolator® 3 Nano – Effortless, safe, and precise water level control backed by German engineering. The ideal choice for discerning aquarists with systems up to 250L.