As previously stated by this FishfarmingXpert writer, one of the ways so-called “closed containment” fish farming can work is when one has access to a supply of either warm water or a source of cheap heating energy where fast-growing fresh-water fish can be produced in a short turn-around time. One such farm that is supplying the Canadian largely Asian community with fresh fish is Desert Springs Tilapia, and Mary Carroll, a student at the University of Arizona recently described this operation and its operational advantages.