How many meters does hairtail grow underwater?

Hairtail grows 60- 100 meters underwater.

Hairtail swimming ability is poor, floating in the middle of the sea during the day and descending to the bottom of the sea at night. When resting, head up, body vertical, only by waving dorsal fin and pectoral fin, eyes watching the movement on the head. If the prey is found, the dorsal fin vibrates rapidly, the body bends and pounces on the food. Hairtail has the characteristic of queuing in groups. Every spring, the water temperature rises, and hairtail swims to the shore in droves, from south to north, which is the fishing season. On the solstice of winter, when the water temperature drops, hairtail will swim to the deep water to avoid the cold.