Juice the Lime, Lemon and Orange and set aside.
Add the shrimp to the boiling water, cook 30 seconds.
Dice the cucumber, onion and tomato. Place in a bowl.
Add the Lime,Lemon and Orange juice to the bowl.
Stir to combine.
Add chopped cilantro and mix well.
Cover and refridgerate at least 1 hour before serving.