Biofloc cultures are an interesting alternative in which bacterial protein withhigh biological value is used as a possible food supplement and as part ofa strategy to keep water quality within the parameters required by a givenspecies. The production performance of juveniles of white cachama Piaractusbrachypomus was compared for 60 days. The fish were reared in two systems:one was intensive and had water renewal (T1), while the other hadbiofloc technology (T2).T1 had 50% of its water changed weekly and thepond's bottom was cleaned twice per week. In contrast, T2 was a bioflocsystem (BFT) with added molasses in a carbon:nitrogen ratio of 15:1. Inboth treatments the fish were fed to apparent satiety four times per day.The feed was balanced and had 24% of protein of vegetable origin.A totalof 480 fingerlings were used, whose average weight and size were 0.8 ±0.33 and 3.0 ± 0.4 cm, respectively.The following parameters were determinedon a fifteen-day basis: weight, standard length (SL), daily weightgain (DWG), specific rate of growth in terms of weight (SGR), biomass (B),feed conversion ratio (FCR), survival rate (S), condition factor (K). Likewise,dissolved oxygen (DO), temperature (T°), pH and salinity (ppT) were measuredtwice a day. Furthermore, total suspended solids (TSS) and bioflocvolume were measured every two days.The total ammonia nitrogen (TAN)and the levels of nitrite, nitrate, alkalinity and hardness were determinedweekly. Production performance showed no variations across treatments(P>0.05).The biofloc technology makes it possible to have the same fishdensities as those observed in intensive production systems. Likewise, theproduction performance values are adequate and similar to those of thiskind of system, but the water resource is optimized.Keywords: BFT, white cachama, vegetable protein, performance.