Boil two cups of water. Remove the stem and seeds from the guajillo chile. Add guajillo chile to the boiling water. Remove from heat. Put the lid on. Set aside and let cool.
Heat oil in a large stock pot. Add potatoes and carrots. Stir for 3 minutes.
In a blender, add the guajillo chile, the water it was sitting in, onion, tomatoes, and garlic. Blend until smooth.
Add the guajillo mixture to the stock pot.
Add the remaining 4 cups of water and Caldo de Camarón bouillon.
Simmer on medium heat until the potatoes and carrots are tender. About 10 minutes.
Add shrimp and lime juice. Cook for 6- 8 minutes. Don't overcook shrimp or it will become rubbery
Serve in bowls topped with cilantro and your favorite garnish.