Spicy Grilled Fish

Name: Spicy Grilled Fish
Ingredients: 24 ounces catfish fillets or 24 ounces other mild fish; 1⁄4 cup lemon juice; 1⁄4 cup vegetable oil; 2 tablespoons low sodium soy sauce; 2 tablespoons fresh ginger, finely chopped or 2 teaspoons ground ginger; 6 garlic cloves, finely chopped, about 1 Tbsp; 3 green onions, chopped, green and white parts; 1 teaspoon onion powder; 1 teaspoon paprika; 1⁄2 teaspoon cayenne pepper, adjust to taste; Garnish; lemon wedge (optional); parsley, chopped (optional)