Automatic Control Water Parameters of the Fish Recirculating Culture

As a kind of industrialized aquaculture, recirculating aquaculture is a main characteristic of water purification and recycle, which treats aquaculture water and monitors and controls water parameter using technology of physics, chemistry and biology. This paper lists the various factors that affect fish growth in the circulating aquaculture and summarizes the previously research achievements, mainly focusing on monitor and control modes for dissolved oxygen, pH and ammonia nitrogen.