Tunze 3152 Automatic Top Off


The Tunze Nano 3152 Auto Top Off is one of the world’s most popular ATO systems designed for nano and all in one aquariums. Its suitable for all reef casa aquarium models. It is also one the safest and most reliable ATO’s on the market today.

Key Features Of This ATO System 

  • High accuracy float switch
  • Compact Design
  • Built in safety features
  • Made in Germany


  • Max Head Height: 7.0 ft
  • Product Dimensions3.8 x 3.2 x 2.5 cm

What’s Included?

  • 12 V power supply (north American style plug)
  • low-voltage metering pump.
  • 3 m (118″) hose.
  • magnet holder for up to 10 mm (3/8″) glass thickness.
  • protective cover for the sensor.