In a medium-sized bowl, mix the juice of one lime. Add mangos, onion, salt, sweet pepper and parsley. Refrigerate the salsa while preparing the fish.
In another bowl, combine the salt, pepper, garlic, lime juice, olive oil and minced parsley and mix well.
Coat the marlin steaks with this mixture.
Coat the grill pan with vegetable oil and place it over medium heat.
Place the marlin steaks on the grill pan and cook it for about 4 minutes on one side. Then turn it over and cook it for another 3 more minutes.
Serving Suggestions: Serve marlin fish steaks with tropical fruit salsa on top and garnish with lime wedges.