1. Oven Reheating: Preheat the oven to the proper temperature (about 350°F/175°C), place the diving fish on a baking sheet and cover with aluminum foil or a baking sheet lid to prevent over-drying, and place the fish in the preheated oven.

2. Steam to heat: Using a steamer or steamer basket, place the jumper in the steamer to ensure that the fish is well heated through until it is hot and separates easily.

3. Wrapping for heating: Wrap the diving fish in tinfoil or food preservation bag and put it into boiling water to heat up. The boiling water can heat up and restore the temperature of the fish. Diving fish is a kind of fish, also known as flying fish or sea oats, belonging to the subclass Scleractinia of the class Ichthyoplasmata, the order Parrotmouth and the suborder Jumping Fins, which is mainly distributed in the tropical and subtropical oceans.