The fish pond machine, also known as the seafood fish pond chiller, is used for water temperature control in seafood farming, and the principle is similar to air conditioning. The main components are titanium barrels (guns), fans, condensers, compressors, thermostats, four-way valves and other components. The fish pond machine is widely used in seafood and fish tanks, aquariums and other water temperature control systems to maintain a certain temperature environment for fish to survive.