I'm from Tianjin, and every restaurant is different. Some of them are made of grass carp, regardless of size, maybe 28, and some of them choose their own fish, snakehead 38 yuan/catty. In some places, they eat a catty and get a catty for free. In millions of dollars, they will be divided into large portions of 38/ serving and small portions of 28/ serving, which are also made of grass carp.