I spent some time in Xi 'an before, and a friend also wanted to do aquaculture. Because I don't know how much money you have and how old you want to be, I can't give you advice. However, Shaanxi has a vast territory, which can cover dozens of acres of mountains to cultivate ecological animals, such as pheasants, meat rabbits and quails. Relatively speaking, this kind of investment is small and quick to recover, and the profit of 50-654.38 million yuan a year is not a big problem. However, the risk of breeding is relatively high, so if you don't have any breeding technology at all, I suggest you start small and learn some experience before expanding the scale. I hope my answer is helpful to you, and you can discuss any questions. I study animal husbandry, and now I am engaged in the feed industry.