Abstract: The invention relates to a system for the breeding and reproduction of microorganisms, comprising a basin system (10) and a nutrient suspension (12) disposed in the basin system (10), wherein the basin system (10) comprises a vertical meandering system formed by partition walls (14) in order to achieve a substantially vertical flow of the nutrient suspension (12) in the basin system (10). The invention further relates to a method for the breeding and reproduction of microorganisms by means of a system in which light is introduced into a basin system (10) comprising a nutrient suspension (12), wherein the introduction of the light is carried out by way of partition walls (14) projecting into the nutrient suspension (12), said walls being filled with a dispersive liquid. In this manner an improved yield of microorganisms per hectare can be obtained.