The present research took place during the second half of the year 2022, whose main objective was to know the influence of a peptide supplement in the culture of gamitana fry "Colossoma macropomum" cultivated in concrete tanks in the facilities of the Panduro Fish Perú E.I.R.L. aquarium for 120 days. The DCA experimental design was used, having 3 treatments and a control, all in triplicate. Length, weight and physical and chemical parameters were measured every fifteen days, and zootechnical indexes were calculated such as: daily weight gain (DWG), specific growth rate (SGR), relative growth rate (RGR), weight variation coefficient (CVP%), condition factor (K), apparent food conversion index (FCI) and survival (S%). The concentrations administered were: T1=5ml/kg, T2=15ml/kg, T3=25ml/kg and C = 0ml/kg, of peptide supplement per kilogram of diet, the feeding frequency was twice per day. ...