Wash the fish very well under running water. Squeeze out water.
Add 1/2 cup Spiced Vinegar to rinse and gently wash the fish pieces in vinegar.
Squeeze vinegar out. Add ginger, onions, Vinegar (white), salt and siling labuyo.
Add the 1/3 cup dayap juice and freshly ground pepper.
Place the marinated fish in a covered glass bowl in the refrigerator for 15 minutes then serve.
Serves 4. Preparation time: 20-30 minutes.