Just use Basha fish (Longli fish fillet is more expensive) and freeze it, which has the advantage of no preservation method and no fish bones; The bad thing is that there is no fish head, and the price is a little more expensive. After thawing, 1 kg is about more than 12 yuan. There is also a kind of yellow bone fish, which depends on whether there are such resources in the local area. We also have some students who use this kind of fish because they like it locally and it is not expensive to purchase (of course, it is a small one, two in a bowl).