Ceviche with seasoning

2 lbs red snapper , cubed (substitutions listed in instructions) 1 pint grape tomatoes , halved 1 large red onion , large dice 2 tablespoons fresh lime juice[...]

2/3 lb large shrimp , peeled and cleaned 2/3 lb scallops , quartered 2/3 lb salmon , skinned and pin-boned 1 tomato , chopped 1 mango , peeled and cubed 1/4[...]