The price of mackerel is generally 13 to 18 yuan a kilogram, while the price of grass carp is generally 8 to 12 yuan a kilogram, mackerel is a little more expensive than grass carp mainly because of the mackerel breeding cycle is longer than grass carp, the number of fish is less than the grass carp, the cost is higher than the grass carp.

Grass carp is a herbivorous fish, mainly aquatic plants and terrestrial plants for food, feeding enthusiasm and water temperature, water quality, air pressure and other factors are closely related. Cyprinids are carnivorous fish that feed mainly on mollusks such as snails, mussels, clams and clams.