Biplantol activ counteracts the effects of neagative influence on the water, as a result of its structure as a biologic-biochemical active agent in potentised form on a bio-catalytic base. The reproduction of biological active mircoorganisms, expecially aerobe bacteria, is accelerated. In turn, the decomposition of suspended particles and pollutants is accelerated and the natural self-cleaning and oxygen absorbtion abilities of the water are regenerated. The sediments processed by the aerobe bacteria float to the surface and - if there is no runoff - can be easily removed. A biological equilibrium in the water leads to an improved water quality and further the natural vital functions of aquatic animals and plants. (43)