The usual way to stew barracuda is as follows:

Stir-fry the pot with oil, onion, ginger and thirteen spices, and add some water.

put the fish in the pot, turn the fire up a little, and add the prepared seasonings to the soup.

stew over high heat. About fifteen to twenty minutes.

when the soup is almost collected, add some shredded onion and ginger and serve.