Using a patented method, Söchting Oxydator produces normal and activated oxygen in the aquarium by means of Oxydator solution and special ceramic catalysts. The activated oxygen decomposes particularly putrid matters and toxicants and, thus essentially improves the well-being of fish and plants. Pure oxygen created by the Söchting Oxydator is mostly immediately dissolved in the water, so that there are hardly any bubbles produced. Due to the Oxydator's oxidizing capacity, the water quality will be improved and harmful contaminants in the water will be neutralised and In the summer, it is effective at fighting algae. The benefits of adding hydrogen peroxide to an aquarium in cases of acute oxygen deficiency, water putrefaction and water turbidity, have been known for a long time. The operating time and the amount of oxygen given off by the Söchting Oxydator D depend on the water temperature, the number of catalyst stones you use and the concentration of the oxydator solution. At a temperature of 25 °C, the Söchting Oxydator D will give off oxygen for a period of 2 - 4 weeks when equipped with one catalyst stone and filled with a 6% solution (please order separately). The filling level of the Oxydator can be monitored through the transparent plastic cylinder. The amount of oxygen that is given off depends on the water temperature. The higher the temperature, the more oxygen is produced, the lower the temperature, the smaller the amount of oxygen. Thanks to this phenomenon, your aquarium is always provided with the ideal amount of oxygen. The operating time of the Oxydator shortens or extends accordingly.