1, from the point of view of diet, tilapia is hardly fussy about what it eats, such as rotten food, animal feces will eat, so it is also known as garbage fish. And grass carp mainly eat corn, grass, earthworms and other food, relatively clean.

2, from the growing environment, tilapia grows very fast, in the harsh environment, the water quality is very poor environment can also be very good growth, and its adsorption capacity is very strong, the body is also prone to breeding a variety of parasites and heavy metals, while the grass carp prefers to live in clear, clean waters. In contrast, grass carp are cleaner.