Twelve-inch fish dish. According to the query "Duobao Fish Plate Size and Plate Setting Art", it is known that the standard dish of Duobao fish needs to be placed in a 12-inch plate, and it is an oval fish plate, also known as "fish pond", which is slightly smaller than the diameter of the steamer. Duobao fish is rich in meat, mellow and delicate in taste, and rich in nutritional value.