Fish and vegetable symbiotic hydroponic gardening landscape ecological planting and breeding circulation system

The utility model discloses a fish and vegetable symbiotic hydroponic horticultural landscape ecological planting and breeding circulation system which comprises an inner circulation pipeline, an outer circulation pipeline and a reflux pump, the inner circulation pipeline comprises a plurality of horizontal pipelines which are arranged in an up-down layered mode, the horizontal pipelines on the uppermost layer are communicated with one another, and the horizontal pipelines on the lowermost layer are communicated with one another. A plurality of hydroponic planting holes are formed in the tops of the horizontal pipelines at intervals, and overflow pipes are arranged between the horizontal pipelines on the upper layer and the lower layer; the outer circulating pipeline is configured to support the inner circulating pipeline, and the outer circulating pipeline comprises a first end and a second end; the input end of the reflux pump is communicated with the horizontal pipeline on the lowermost layer, the output e