In recent years, many areas in China have actively developed fish farming in rice paddy fields and achieved better economic benefits. It is expected that more places will be promoted and developed in the future. So, what is suitable for rice breeding in rice paddies? Paddy fields and fish ponds, reservoirs, lakes and other water features are different. First, rice fields are shallow, usually only 3 centimeters deep and 7 centimeters deep, and the deepest is about 20 centimeters. Shallow water not only has less space for fish activities, but is also vulnerable to temperature. The temperature changes day and night are large, especially under the intense sunlight of the summer. Sometimes the water temperature will be high. Second, there are fewer species and quantities of plankton in rice fields than ponds, reservoirs, and lakes, but there are many benthic animals and plants, such as weeds, insects, and otters. In view of this, paddy fish species should be dominated by "eating" fish, such as grass carp, catfish and tilapia. In paddy fields where the water quality is relatively high, fish such as squid, squid, squid and quail can also be cultured. For rice fields with better conditions, Macrobrachium rosenbergii and crabs can also be considered for stocking, but management and feeding must be strengthened.
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