Treated water represents a real alternative to reduce the global freshwater crisis. However, management approaches are applied that depart from the linear thinking of producing, consuming and discarding. In this sense, the circular economy is an option to generate products that from their origin are oriented to be reused. In this way, if we think about treated water from this conceptual framework, we would mitigate water scarcity in cities. The effluent generated in the Las Joyas Wastewater Treatment Plant was evaluated in the survival, development and cultivation of Oreochromis niloticus. 350 adult tilapia specimens were sown (50 females and 300 males). The effluent will achieve the survival, development and cultivation of tilapia.