Ask the fish handler to fillet your fish, and reserve the head and bones. If the fish market doesn’t have this service, fillet the fish according to this video
. (Optional) To serve the fish the authentic way, you can leave the fish skin on. It’s easier to cook the fish this way, because the skin will hold the flesh together, preventing it from falling apart. On the other hand, catfish skin is pretty fatty and might taste a bit greasy after cooking. If you don’t like the mouthfeel, remove and discard the skin.