The invention relates to a
freshwater fish and vegetable symbiotic closed circulation
system. The
freshwater fish and vegetable symbiotic closed circulation
system comprises a culture subsystem, a
filtration and
precipitation subsystem, a biochemical treatment subsystem, a vegetable soilless culture subsystem, a
water quality stabilization subsystem, an intelligent monitoring and automatic adjusting subsystem and a waste animal and
plant treatment subsystem, wherein the
filtration and
precipitation subsystem comprises a microfilter and a
precipitation pond, the microfilter is used for filtering impurities in the culture pond, and the impurities are precipitated at the bottom of the precipitation pond; the biochemical treatment subsystem comprises a biochemical
treatment pond, and the vegetable soilless culture subsystem comprises a
water layer, a planting layer, a filler layer and a hollow layer which are sequentially arranged from top to bottom; the
water quality stabilization subsystem comprises a light supplementing lamp and a plurality of
aeration pipes; the intelligent monitoring and automatic adjusting subsystem receives the collected information of each subsystem and correspondingly adjusts the collected information; and the waste animal and
plant treatment subsystem is used for feeding insects. According to the
freshwater fish and vegetable symbiotic closed circulation
system, fish and vegetable symbiotic modular combination is utilized, the proportion is determined by adopting a scientific calculation method, and an intelligent closed type fish and vegetable symbiotic circulating water planting and breeding comprehensive
technology system with a complete subsystem is established by utilizing application of various fusion subjects; and all-year-round planting and breeding production can be carried out, organic waste in the planting and breeding process is reduced, and environment-friendly production is achieved.