Prepare the batter by combining the flour, garlic powder, milk, water, salt, and ground black pepper in a bowl. Whisk until well incorporated.
Heat the cooking oil in a deep pan or cooking pot.
Dip the fish fillets in the batter. Make sure that the entire fillet is coated.
Deep fry in medium heat until the color turns golden brown (about 5 to 7 minutes).
Remove the fish from the fryer. Transfer to a serving plate.
Serve with Braised Collard Greens.
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