Super Hot and Sour Shrimp Soup

Combine the shrimp stock lemon zest and lime zest in a large pot and bring to a boil. Reduce heat to medium and simmer for about 5 minutes. Add mushrooms and shrimp and cook until shrimp have heated through about 5 minutes. Stir in the fish sauce lime juice green onion cilantro and chile pepper. Taste and adjust salt and pepper if needed. Soup should be sour salty spicy and hot.