In 2015, ZEMING Technology deployed an environmental monitoring buoy system in the aquaculture area of the Freshwater Aquaculture Research Institute in Zhejiang Province. This system is equipped with multi-parameter online monitoring instruments, in-situ total phosphorus and total nitrogen monitors, a COD online monitoring device, and a data management platform for real-time monitoring, diagnostics, data collection, statistics, and report generation. It enables timely assessment of various chemical ions and nutrient levels in the water, allowing for better management of water quality and its variations. Early testing of water quality during fry stocking effectively increases fry survival rates.