Heat the Instant Pot on Saute. When the pot shows HOT, add coconut oil. Add garlic and paprika and sizzle for about 5 seconds. Stir in onions, bell pepper, green onions, tomato, cilantro, and salt.
Add in water and frozen fish.
Close the lid. Select PRESSURE COOK and set the pot at high pressure for 1 minute. At the end of the cooking time, allow the pot to rest undisturbed for 5 minutes and then release all remaining pressure.