Shrimp Ceviche - With seafood

2 lbs partially defrosted cooked tailless large shrimp , cut into 1-inch bite sized chunks 1 cup lump crabmeat , picked over (optional) 1 fresh lemon , juice[...]

4 ounces baby shrimp , peeled, deveined, diced 4 ounces fresh ahi tuna , diced 4 ounces fish, diced (amberjack) 3 sprigs mint leaves , coarsely chopped 6[...]