Sander has produced Ozone Generators and Accessories for the Fish Industry
Ozone is a natural very active form of oxygen. Therefore it is often called active oxygen.

Ozone
* destroys pathogenic agents
* makes water transparent
* destroys algae
* reduces the load of toxic nitrite
* supports and activates the biofilter
* decomposes organic substances
* decomposes yellow substances of the water
The most important accessory to take full advantage of the ozone's influence is a Protein Skimmer.