Tunze Osmolator Nano 3152 Auto Top Off ATO

Water level controller with only one sensor for nano aquariums or small aquariums with up to 200 liters (55 USgal.). Can be installed in a cabinet filter or directly on the aquarium edge. Scope of delivery: ready for installation with 12 V power supply, low-voltage metering pump, 3 m (118 in.) hose, magnet holder for up to 10 mm (3/8") glass thickness and a protective cover for the sensor.

TunzeSKU: 4025167315213

- Availability: Backordered
   This item ships or is available for pickup in-store in 3-10 business days after order.
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Sale price$149.99


Tunze Osmolator Nano 3152 Auto Top Off ATO

For small aquariums, a stable osmotic balance is important, because they are particularly sensitive to constantly changing salt concentrations. The Osmolator® nano which was specifically designed for this, is a water level controller with only a single sensor and is equipped with a processor-based controller that protects against overfilling. It is suitable for nano aquariums or small aquariums up to 200 liters (55 USgal.).


  • Micro-processor controlled controller with time monitoring for aquariums under 100 liters (26.4 USgal.) or up to 200 liters (52.8 USgal.), adjustable with internal jumper.
  • Sensor with magnet holder, light protected, can be positioned at any desired position on the glass pane from 4 to 10 mm (.2 - .4 in.).

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