According to market research, the prices in metapenaeus ensis will change in different regions and seasons. However, according to the current market conditions, the price of 250g metapenaeus ensis 30 yuan is within a reasonable range. According to the price data of several e-commerce platforms and seafood markets, the average price in metapenaeus ensis is around 80 yuan per catty, while 250g is about half a catty, so the price in 30 yuan is relatively reasonable.