Press Saute function on the Instant Pot. When display reads "hot", add olive oil.
Add the bay leaves, and paprika and stir for about 30 seconds
Add the onion, bell pepper, tomatoes, garlic and 2 tablespoons of the cilantro; season with salt and pepper. Stir for a few minutes.
Add fish stock or water.
Season the fish with salt and pepper. Nestle the clams and shrimps among the vegetables in the pot. Add the fish pieces on top.
Close the lid tightly, and close the vent. Press Manual and adjust the time to 10 minutes pressure cooking.
When the timer goes off, let the pressure naturally release for 10 minutes. Release remaining pressure if any.
Divide the stew among bowls. Drizzle with the remaining 1 tablespoon olive oil and sprinkle with the remaining 2 tablespoons cilantro and serve immediately. Enjoy!