The protein skimmer is a combination of three different filter systems.

The filter operates biological, mechanical and chemical.

The principle of the skimming of salt water is not new and has been successfully used for years in aquarium filtration. Thanks to the unique, patented, design of the Tornado protein skimmer, it is now possible to apply the principle of protein skimming in fresh water.

The principle operates as follows:

The surface of an air bubble attracts dissolved substances out of the water. Because of the adhesion of the bubbles these substances, like chemicals, waste particles, colourants and algae, are concentrated.

By means of a venturi, air is mixed with water. By forcing this mixture through the filter material (the white “KNS” bio rings) to a lower drain, there is a long contact between air and water. This changes the surface tension of the water continuously and a thick foam arises. The foam is separated from the cleared water by a grid and drained. Different kinds of pollution are caught in the foam and drained.

This makes the filter self cleaning. Dissolved substances like; phosphates, ammonia, humus acids, colourants, proteins and a number of heavy metals, are filtered out of the water and drained together with the foam.

The extraction of dissolved substances is not possible with normal filters and can only be done if chemicals are added.

The filter has various advantages:

Stabilizes pH
Removes colourants
Increases dissolved oxygen
Not depending on bacteria and works as soon as the pump is running.
Prevents fish diseases as a result of bad water quality.

Total height 75 cm, Ø 16 cm.
Water inlet Ø 25 mm.
Water outlet Ø 50 mm.
Foam outlet Ø 25 mm.

Pump capacity between 1500 litre and 5000 litre per hour.

Recommended pressure for the venturi 0,3 bar (3 meters).