What kind of fish is floating on the water?

Inverted catfish, also known as anti-swimming cat. It is a very interesting tropical ornamental fish, belonging to the Siluriformes, Carassidae. The fish is brown in color, and its abdomen faces the sky when swimming, which is a must among ornamental fish. The upper part is lighter in color than the lower part and easy to hide. It likes floating bait and swims backwards when eating.