1, the small particles on the back of the turbot don't need to be treated. The small particles on the back of Duobao fish are its echinoderm, which can be eaten without treatment. This kind of fish lives in the ocean, is an omnivorous fish of benthos, can live in the water temperature of 1-28℃, has fast growth speed and strong disease resistance, and is a very good economic fish.

2. Duobao fish, a fish of Scophthalmus of Scophthalmus, is native to the Atlantic Ocean of Europe, mainly distributed in the North Sea, and inhabits the sea area with sand, gravel or mixed sediment with a water depth of 20-70m. Duobao fish is very flat, oblong, oval or long tongue-shaped. Its mouth is slightly prominent; Fins generally have no fin spines; The dorsal fin and the anal fin are long in base, connected or not connected with the caudal fin. Their eyes are on the upward side of their bodies, and the color of this side is well matched with the surrounding environment; Their downward side is white; There are extremely fine scales on the surface of the body.