Begin by heating your canola oil in a large, heavy-bottomed pot or deep fryer. You'll want it to be about 2 to 3 inches deep and heated to 375 degrees F.
While the oil is heating, prepare your fish. Cut it into large fillets or chunks, ensuring they are of uniform size for even cooking. Pat the fish dry with paper towels and season with salt and pepper.
In a mixing bowl, whisk together the all-purpose flour, garlic powder, paprika, and seasoned salt. Once combined, stir in the lightly beaten eggs. Gradually whisk in the beer until you have a smooth batter with no lumps.
Now, it's time to coat the fish. Dip each fillet or chunk into the beer batter, ensuring it's evenly coated, then carefully place it into the hot oil.
Fry the fish for 4 to 5 minutes, or until it's a beautiful golden brown color and cooked through. Once done, remove the fish from the oil and let it drain on a wire rack.
Serve your crispy beer batter fish hot as the main course and enjoy!