Cut shrimp into small pieces and place in a container.
Add the lime juice making sure all the shrimp is covered with it (add more lime juice if necessary).
Cover shrimp and refrigerate for at least three hours (preferably overnight).
Mix all vegetables and set aside in the fridge.
When the shrimp is cooked through (it will be pink), add the vegetables, clamato juice, salt & pepper and mix well.
Serve with tostadas, saltines or tortilla chips.