Seafood stalls are everywhere in Muping. However, if you want to eat cheap and tasty seafood, then small stores in the old town are a good choice. These stores are usually found by local citizens or tourists familiar with the area, with fair prices and fresh dishes.
If you want to try real Muping local seafood, it is always recommended to go to the vegetable market. The seafood here is in most cases freshly caught from the sea early in the morning. Moreover, because it is a wholesale market, the price will be relatively much cheaper. All you need to do is find your favorite seafood and take a picture of the price tag, then head to a small store nearby and let the shopkeeper cook it for you.
Overall, Muping's seafood is of good quality, but it's also relatively expensive. If you want cheap and affordable seafood, just walk into a small local store or go to a food market to find a good product, and I'm sure you'll have a satisfying meal.