Söchting Oxydators breakdown hydrogen peroxide into pure oxygen and water (2 H2O2—->2 H20 + O2) using a special catalyst. The Söchting Oxydator adds oxygen continuously and slowly to your aquarium. The additional oxygen helps provide oxygen for aquatic critters and the beneficial bacteria in your tank.
The Söchting Oxydators A is designed for aquaria up to about 401 litre. You can use additional Oxydators A or D for larger capacity. 2 catalyst are included. An instruction sheet is included. Oxydator solution is not included.