Simple Tilapia Ceviche

Name: Simple Tilapia Ceviche
Ingredients: 2 1/2 Pounds tilapia, diced finely; 1 Cup lime juice (about 10 limes); 1 Cup orange juice (about 3 oranges); 1 Cup lemon juice (about 8 lemons); 4 serrano peppers, sliced; 1/4 Ounce ginger, minced; 1/4 Cup extra-virgin olive oil; 3 cloves garlic, minced; Kosher salt and freshly ground black pepper, to taste; 5 Ounces red onion, diced; 5 Ounces Roma tomatoes, diced; 1 1/4 Pound avocado, peeled, seeded, and diced; 2 1/2 Ounces cilantro, chopped finely