The black and white of perch are normal, and there is no better way to say it. The species of perch in China is mainly Songjiang perch, also known as four-cheeked perch, also known as tiger fish. Its body length is flat, its lower jaw is longer than that of the upper jaw, and its meat is garlic-petal-shaped. The swim bladder can be used to make a fish belly, which is often steamed. Its meat is white and tender, with few thorns and no fishy smell. It is very delicious, rich in protein and vitamins. It can be used as medicine and is an extremely precious tonic.

To sum up, black and white of perch are normal colors, which can be selected according to personal preference.