U.S. Farmed Tilapia
In the United States, tilapia is generally farmed in closed systems that limit pollution. Many of these farms conserve resources by re-circulating the water, and some even make use of nutrient by-products to grow hydroponic crops. Because tilapia can thrive on plant-based diets, their feed does not require wild fish as an ingredient. Depletion of wild stocks for feed use is a major drawback of many other farmed fish. Because indoor, re-circulating systems are carefully controlled, tilapia producers in the United States rarely use antibiotics or chemicals.