In a shallow dish combine flour, cornmeal, chili powder, red pepper, garlic powder, paprika, 1 1/2 teaspoons salt, and 1/8 tea-spoon pepper.
Dip fish into flour mixture.
In a large skillet heat half of the butter or margarine and half of the oil.
Add half of the fish to the skillet in a single layer.
Fry over medium heat till fish is done and coating is golden brown, turning once (allow 3 to 8 minutes total).
Remove fish from skillet and drain on paper towels.
Repeat with remaining butter or margarine, oil, and fish.