Delicious. Eldoga hairtail is not only delicious, but also has high nutritional value and is easy to eat with less thorns. It is a delicious food for all ages. Hairtail, belonging to Neoptera, Perciformes, trichiuridae, Hairtail. Hairtail is flat as a ribbon, silvery gray, with light gray dorsal fin and pectoral fin with tiny spots, black tail, and the tip of hairtail is larger, gradually tapering towards the tail, with a total length of about 1 meter.