Aquarium preparation with a wide range of applications, which effectively protects fish against dangerous pathogens such as bacteria, protozoan and fungi. It accelerates the regeneration of the mucus and helps treat fin erosions. It effectively protects eggs, larvae and fry of delicate species. The light contributes to the decomposition of active substance, hence during the treatment with HEALTHOSAN it should be turned off. Delicate plants may suffer damage as a result of treatment with HEALTHOSAN.