Longli fish. Longli fish is an offshore fish and the price is somewhat expensive. However, the meat of Longli fish is smooth, not stale after being cooked for a long time, has no fishy smell, is rich in nutrients, and has very few fish bones, making it very suitable for making pickled fish. Blackfish is also very suitable for making pickled fish. Friends who often go out to eat will find that many businesses use black fish as the main ingredient for pickled fish, boiled fish and other dishes. This is because snakeheaded fish has fewer bones, is tender and not easily broken when cooked, and is a relatively common and affordable freshwater fish.