Cut the fish into cubes about 0.5 cm apart and soak in salted water.
Meanwhile, cut the cucumbers, the diced tomatoes and grate the carrots, squeeze all the vegetables and mix (important).
Empty the water where the fish is and add the liter of lemon juice instead.
Meanwhile, chop the ginger and slice the green onions in thin slices.
Check the cooking of the fish in the lemon, if the flesh has whitened then the fish is cooked.
Empty all the lemon juice and add all the vegetables, mix everything. Salt, pepper and add the ginger.
Pour the coconut milk over the salad and decorate with green onions.
Enjoy your meal from