Combine seafood seasoning and chili powder in a small bowl. Rub mixture onto both sides of fish.
Heat a large nonstick skillet over medium- high heat. Coat fish with cooking spray. Add fish to pan; cook 3 minutes on each side or until fish flakes easily when tested with a fork. Place fish on a plate, sprinkle with salt, and keep warm.
Heat pan over high heat. Add oil, bell pepper, onion, and corn to pan. Sauté 3 minutes or until lightly browned. Stir in cilantro. Serve fish with corn mixture and limes.