Combine cornmeal and salt. Dip fish in buttermilk, and dredge in cornmeal mixture.
Carefully drop fish into deep hot oil (350). Fry until fish float to the top and are golden brown; drain well on paper towels. Reserve hot oil for frying Hush Puppies.
Transfer fish to a warm serving platter, and garnish with lemon wedges.
Serve immediately with tartar sauce and Hush Puppies.