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TUNZE Osmolator Nano – Automatic Top-Off System for Nano Aquariums up to 200 Liters
The TUNZE Osmolator Nano is a compact and reliable automatic top-off system, designed for nano and small aquariums up to 200 liters. Perfect for systems with built-in filtration or sump setups, it ensures consistent water levels by compensating for evaporation—helping to prevent salinity swings and maintain chemical stability.
Equipped with a light-shielded electronic sensor, it accurately detects drops in water level and activates a low-voltage dosing pump to refill evaporated water automatically. This keeps conditions stable and reduces the risk of stress or harm to fish, corals, and invertebrates.
The system includes an integrated microprocessor controller with an internal timer that can be adjusted via jumper to suit tanks under 100 liters or up to 200 liters. The Magnet Holder mounting system, compatible with glass thicknesses from 4 to 10 mm, provides a secure and easy installation without modifying your tank.
Delivered ready to use, the Osmolator Nano includes an 11V power supply, dosing pump, 3-meter hose, Magnet Holder, and sensor protection cap. Its low voltage operation ensures maximum safety and low energy consumption, making it ideal for home, office, or professional setups.
Compatible with both freshwater and marine aquariums, the Osmolator Nano is ideal for tropical tanks, nano reefs, planted tanks, or small reef systems prone to fast evaporation.
Key features:
Automatic top-off for aquariums up to 200 liters
Light-shielded sensor with magnetic holder
Microprocessor controller with internal timer
Low-voltage dosing pump, safe and efficient
Works with freshwater and saltwater systems
Easy to install, complete plug-and-play set
Maintains stable water level, reduces salinity swings
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