For decades antidepressive drugs were used mainly by human. They are selective serotonin reuptake inhibitors SSRI’s, as an example, of sertraline type. In this form sertraline and its metabolite desmethylsertraline and cure plant effluents, are discharged into municipal wastewater, and are common in surface waters of the US . Thus, aquatic animals may be uncovered to SSRI’s prescription drugs often detected in municipal wastewater at the levels high enough to most likely alter both, their behavior and physiology, because they may have the potential to bioaccumulate SSRI in organism in the concentrations that can have conduct symptoms . The epithelial absorption represents a believable mechanism for the absorption of environmental contaminants in the body tissues of aquatic animals . The aim of this study was to check the results of waterborne sertraline hydrochloride indifferent concentrations on the aggressive behavior of betas and their correlations during 14 days of exposure.