Put the fresh fish in the freezer while you cut everything else. This will make it easier to cut afterwards
Cut the avocado, mango, red onion and tomatoes. Make sure to cut only the tomato flesh, leave out the insides (otherwise it will be too watery)
Mix everything. Season with salt, pepper and chilli flakes. Add lime juice and a sprinkle of olive oil. Leave this in the fridge while you cut the fish
Cut the sea bass into small cubes. Add it to rest of the mixture. Add more lime juice if needed. Add cilantro and season one last time
