Brazilian Fish Stew aka Moqueca Baiana and Brabantia Love

Name: Brazilian Fish Stew aka Moqueca Baiana and Brabantia Love
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Cuisine: American, Latin American
Ingredients: 1 kg (2.2lb) mackerel (cut into chunks); 2 limes juiced (divided); Salt; 2 tbsp vegetable oil; 1 onion (thinly sliced); 1 red pepper (deseeded and thinly sliced); 1 yellow pepper (deseeded and thinly sliced); 2 garlic cloves (minced); 1 red chilli (deseeded and finely chopped); 500 ml (2 cups) warm fish stock; 400 g (14oz) tin chopped tomatoes; 250 ml (1 cup) coconut milk; 1 tbsp palm oil (or vegetable oil); 1 tsp minced coriander (cilantro); Rice and herbs like coriander, (for serving)