Due to highly-publicized findings about some poorly-run farms, many people associate aquaculture with contaminated fish and unsustainable husbandry practices. This episode explains what you need to know to make safe choices about fish, and also why you don't need to worry about contaminants in cultured fish that are raised in the United States. Issues regarding feed are addressed, and special attention is given to recent efforts to raise walleye in aquaculture.