What are the common grass carp culture modes?

One grass carp with three silver chubs

Common grass carp culture modes include pond main culture, pond set culture, net box culture and purse seine culture. In traditional pond culture, every stocking of grass carp should be accompanied by a few silver carp, which is due to the mutually beneficial relationship between grass carp and silver carp in the water body. Grass carp eat a large amount of food, and a large portion of the ingested grass and other indigestible ingredients such as cellulose, so they excrete a large amount of feces, which causes the rapid reproduction of tiny algae and other phytoplankton in the water. The phytoplankton in the water is the main bait for the silver carp, and the silver carp continuously ingests these algae, which plays a role in cleaning the water and provides a relatively stable water environment for the grass carp. Therefore, when raising grass carp, with a certain amount of silver carp, not only can not increase the amount of bait and harvest silver carp, but also make the grass carp grow better, fishermen will be summarized as "a grass to raise three silver carp".