Anticucho style grilled fish

4 fish filets, like shark, tuna, cod, mahi mahi
2 pickled jalapenos plus 2 tbsp of the juice
1/4 cup to 1/2 cup fresh lime juice
1/4 cup soy sauce
1/2 cup vegetable oil
5 peeled garlic cloves
1 teaspoon cracked black pepper
1 fistful of fresh cilantro

Combine and blend all ingredients, except fish, in blender until smooth. Marinate fish for 30-40 minutes. Grill over medium hot coals until cooked through. Baste with the reserved marinade several times during cooking. Serve with lime wedges, avocado slices and pico de gallo.