It's called a knifefish. It's small and nutritious. It has spleen, gas, stomach, liver, skin, gas, blood and beauty. Those who are fit for a man who is dizziness, short-temporal, weak and malnourished are particularly fit for a person whose stomach is weak, digestive and skin dry. So, people with poor appetites can consider eating more fish in the summer. It's easy to digest, it's nice, and it's a common dish on the table: the fish with the bean sauce。