Origin difference. There is a clear difference in the origin between the arowana and the croaker, because the arowana is a kind of marine fish, which is mostly produced in the sea, and there is a large number of production in the coastal areas of China, while the croaker is a kind of freshwater fish, which is mainly produced in the freshwater of Southeast Asia, and it is a kind of catfish.
Difference in fat content. There is a big difference between the fat content of the arowana and the croaker, especially when observing those without skin removal, people will find that there is almost no fat under the skin of the arowana, but there is thick fat between the skin and the muscle of the croaker, and these fats are mainly saturated fatty acids, If people eat these fats, they will increase the burden of body organs and easily cause diseases in the body.
Appearance difference. There are also obvious differences in appearance between the arowana and the croaker. The croaker living in nature is relatively large, while the arowana is relatively small, and it is mostly not flat leaf shaped. If the fresh croaker and the croaker are put together, people can see the difference at a glance.