High-Tech, just for a reliable water level in your tank

In 1985 TUNZE® invented the “auto top off” system. Critics initially derided the idea as an invention for lazy people… They missed the main point: delicate aquatic life requires a constant osmotic pressure. The Osmolator® - short for Osmotic Regulator - provides this in one easy-to-install complete Kit. Only the Osmolator® provides the level of safety and reliability that comes with 25 years of TUNZE® know how.

The Osmolator® will be supplied with low voltage pump, mounting magnets, tubing controller and power supply. You only need a reservoir and water!

Accessories (order separately)

Osmolator® nano

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 overdosing. It is suitable for nano aquariums or small aquariums up to 200 liters (55 USgal.). The sensor with magnetic holder is light-protected and can be positioned at any desired location on the glass panel.