In a small bowl, combine paprika, salt, onion, powder, garlic powder, ginger, cayenne pepper, and thyme. Preheat a frying pan over high heat. Brush the fish with a small amount of melted butter and sprinkle liberally with a mixture of seasonings. When the pan is hot, add oil for frying and put the fish in it, and fry for 2 minutes on each side.
Mix the melted butter with lemon or lime zest. Pour over the fish before serving. Additionally, put a slice of lime and herbs on a plate.