In a Dutch oven, bring 2 quarts water to a boil over medium-high heat. Add shrimp and scallops; cook for 3 minutes. Drain and immediately plunge into an ice bath to stop the cooking process. Drain and coarsely chop shrimp and scallops.
In a large bowl, combine shrimp and scallops, mango, pineapple, cucumber, onion, jalapeño, poblano, and cilantro.
In a small bowl, whisk together olive oil, lime juice, vinegar, salt, and pepper. Add to shrimp mixture; toss. Cover and refrigerate for at least 4 hours or up to 1 day before serving with Homemade Tortilla Chips.
Recipe by Victoria at https://victoriamag.com/scallop-and-shrimp-seviche-recipe/