For salsa, in a large bowl, combine the tomatoes, onion, jalapenos, vinegar and 1 teaspoon salt. Cover and refrigerate for at least 30 minutes., Combine the paprika, chili powder, cumin, coriander, cayenne, garlic powder and remaining salt; rub over catfish. Using long-handled tongs, moisten a paper towel with cooking oil and lightly coat the grill rack. , Grill fillets, uncovered, over medium heat or broil 4 in. from the heat for 5 minutes on each side or until fish flakes easily with a fork. Serve with salsa.