Tom yum seafood soup

Name: Tom yum seafood soup
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Cuisine: Thai, Asian
Ingredients: 50g tom yum or red Thai curry paste; 100g button mushrooms, quartered; 2 lime leaves; 1 stick lemon grass, crushed; 2-3cm piece of ginger, cut into thin matchsticks; 400g packet mixed seafood, preferably raw, defrosted if frozen, eg, fruits de mer; Dash of fish sauce; 1tbsp palm or granulated sugar; Squeeze of lime juice; Coriander leaves, to serve