A staff from a local pet fish breeding company feeds koi fish in Zhenping County of Nanyang, central China's Henan Province, Nov. 14, 2019. Based on its advantage in traditional breeding industry, Houji Town in Zhenping County has developed the "pet fish economy" and established a complete industrial chain, as a way to boost local economy and locals' income. (Xinhua/Li Jianan)

　　A staff from a local pet fish breeding company deals with orders through e-commerce platform in Zhenping County of Nanyang, central China's Henan Province, Nov. 14, 2019. Based on its advantage in traditional breeding industry, Houji Town in Zhenping County has developed the "pet fish economy" and established a complete industrial chain, as a way to boost local economy and locals' income. (Xinhua/Li Jianan)

　　A staff from a local pet fish breeding company catches koi fish in Zhenping County of Nanyang, central China's Henan Province, Nov. 14, 2019. Based on its advantage in traditional breeding industry, Houji Town in Zhenping County has developed the "pet fish economy" and established a complete industrial chain, as a way to boost local economy and locals' income. (Xinhua/Li Jianan)

　　Aerial photo taken on Nov. 14, 2019 shows koi fish at a local pet fish breeding company in Zhenping County of Nanyang, central China's Henan Province. Based on its advantage in traditional breeding industry, Houji Town in Zhenping County has developed the "pet fish economy" and established a complete industrial chain, as a way to boost local economy and locals' income. (Xinhua/Li Jianan)

　　Aerial photo taken on Nov. 14, 2019 shows the breeding base at a local pet fish breeding company in Zhenping County of Nanyang, central China's Henan Province. Based on its advantage in traditional breeding industry, Houji Town in Zhenping County has developed the "pet fish economy" and established a complete industrial chain, as a way to boost local economy and locals' income. (Xinhua/Li Jianan)

　　A staff from a local pet fish breeding company displays a koi fish in Zhenping County of Nanyang, central China's Henan Province, Nov. 14, 2019. Based on its advantage in traditional breeding industry, Houji Town in Zhenping County has developed the "pet fish economy" and established a complete industrial chain, as a way to boost local economy and locals' income. (Xinhua/Li Jianan)

　　Aerial photo taken on Nov. 14, 2019 shows a staff from a local pet fish breeding company feeding koi fish in Zhenping County of Nanyang, central China's Henan Province. Based on its advantage in traditional breeding industry, Houji Town in Zhenping County has developed the "pet fish economy" and established a complete industrial chain, as a way to boost local economy and locals' income. (Xinhua/Li Jianan)