With the Hobby regeneration salt the Hobby nitrate killer can be regenerated.To regenerate 250 ml of Nitratkiller we recommend a solution of 100 g of Nitratkiller regeneration salt and 1 l of distilled water. Distilled water is important because in many regions even tap water has high nitrate levels. Furthermore, the efficiency of the special regeneration salt could be reduced due to the reaction with the ions in the tap water. Regeneration takestwo days, and during this time the net bag should be moved around or lightly kneaded. Then rinse thoroughly under running water.Do you have questions about this article ?