The term 'often-farmed fish' refers to Tilapia, a 7-letter fish that is commonly farmed for its edible flesh. Tilapia is native to Africa and the Middle East, but is now farmed in many parts of the world. It is a popular choice for aquaculture due to its hardiness and fast growth rate. Tilapia is a versatile fish that can be cooked in a variety of ways, making it a popular choice for home cooks and restaurants alike.