13.5 inch. Peacock open screen fish is a special traditional dish, belongs to the Lu cuisine, this dish is the Spring Festival festival dishes, a festive and peaceful intentions, two fish steamed, not only to maintain the original flavor, but also very fresh and tender. General normal fish plate size mainly 13.5 inches and 11.5 inches two. Because of the steamed peacock open screen fish should choose wuchang fish, need to cut the head and tail of the fish under the plate, the fish body of the choice of fish thick and fat, need to be sliced and decorated with flowers on the plate, the plate needs to be relatively large size, so it is the choice of 13.5 inches is more appropriate. Wuchang fish is warm, has a deficiency, beneficial to the spleen, blood, wind, stomach effects, can prevent anemia, hypoglycemia, hypertension and arteriosclerosis and other diseases.