A rice-fish system is a polyculture practice that integrates rice agriculture with aquaculture, most commonly with freshwater fish. This practice is highly valued as it was one of the first to be considered as a “Globally Important Agricultural Heritage System” according to FAO-GEF (Global Environment Facility). It is based on a mutually beneficial symbiotic relationship between rice and fish that is developed when introduced into the same ecosystem. Many benefits, including social, economic and environmental come with these systems.