In shallow dish, combine cornmeal, Seasoned Salt and cayenne pepper. Dip fish in buttermilk, shake off excess buttermilk and coat with flour. Dip again in buttermilk, then coat with seasoned cornmeal. In large heavy skillet (cast iron is best), heat oil over medium-high heat until hot. Fry fish about 5 minutes on each side, depending on thickness, or until fish just begins to flake.