The knots used for setting up a trout fishing line include the improved clinch knot, the Palomar knot, and the double uni knot. The improved clinch knot is used for attaching the hook to the line, the Palomar knot is used for tying on lures or swivels, and the double uni knot is used for connecting two lines together. These knots are strong and reliable and should be practiced before heading out on the water.