The disposal of waste water from intensive raising fish ponds was studied to find out what remedial measures were required to ensure that the Tra fish farming in the Mekong delta is environmentally friendly and ecologically sustainable. Remedial measures were studied to manage ammonia concentration, turbidity, total suspended solids (TSS), dissolved oxygen (DO), chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP) concentrations in waste water. The ammonia concentration in the effluent from Tra fish ponds was monitored at 5 pH levels: pond's pH, and pHs of 7, 6.5, 6.0 and 5.5. Concentrations of ammonia, turbidity and TN in the effluent from Tra fish ponds were analyzed at two stages (middle and late season). The influences of added sorbents: zeolite (30 mg/L), alum [Al2 (SO4)3] (30 mg/L), resin (2100 g/box/10 L tank) plus a control were studied on waste water composition at mid season. TSS, DO, COD, TN and TP were analyzed. These experiments were carried out in the 10 L tanks, using a completely randomized design with 3 replicates. Samples were monitored at 0, 12, 24, 48 hours after treatment. The results showed that: 1) Turbidity and ammonia concentrations of the waste water decreasedwhen pH or