Tilapia is a species of freshwater, plant-eating fish, and chances are you ate it last year. On average, each American eats more than 1 pound (lb) of the fish each year. Today, it’s the fourth most consumed fish in the United States, after tuna, salmon, and Alaskan pollock. Tilapia is an inexpensive, mild white fish that’s easy to prepare and cook, making it an appealing dinner choice. But beyond taste, it’s the farming practices that have caused tilapia to explode in popularity. Nicknamed the “aqua-chicken,” tilapia can be produced on a mass scale, allowing the fish to be widely available at a high quality and an affordable price.