Returns depend on inputs. Inputs are correct fish stocking rates, good quality identifiable seed, proper fertilization, vigilance and strong management. Harvest techniques, proper magement of harvesters, transportation to market and having reliable staff to sell the produce is also very important. On average, you should expect to sell over Rs. 100,000 worth of fish per acre (gross). Average net income from fish farms is over Rs. 50,000 per acre per year but with proper management, net profits of Rs. 100,000 per acre per year can be achieved.