Step 1: First, marinate the fish in about 2 tablespoons calamansi extract (you can substitute either lemon or lime), 2 gloves garlic finely minced, ½ teaspoon ground pepper and 1 teaspoon salt.
Step 2: Mix the other ingredients all-together in a wide bowl and set aside. In addition, about a cup of vegetable oil for frying is required.
Step 3: To prepare for frying, arrange the fish fillets and flour mixture side by side. Take one fillet at a time and thoroughly coat it on all sides with the flour mixture as shown below. Continue coating the fillets in batches.
Step 4: In a medium, deep and heavy bottomed pan, heat the vegetable oil over medium-high flame until hot but not smoking.
Step 5: Fry the fully coated fish fillet in batches. When slightly browned and crisp, flip over to cook the underside.
Step 6: Continue cooking until all the fish are fried. Drain excess oil from the cooked fish using paper towels.
Step 7: Transfer the cooked fish fillets in a medium plate and serve warm.