• Preheat your gas grill or light your charcoal grill. • Place the side of fish on a platter and sprinkle with the citrus zest from the orange, lemon, and lime. Squeeze ½ the juice of the 3 fruits over the fish. Sprinkle with brown sugar, chopped thyme, olive oil, salt and freshly ground black pepper. Set aside for about 15 minutes. • Place the fish directly on the hot grill or on the grill using a non-stick fish grill cage. • Cook for about 4-7 mins per side or until cooked through.