In a large bowl, combine the juices, oil, onions, citrus fruits, chives and
cilantro. Add the snapper, cover and refrigerate for 2 hours or overnight.
Using two skewers thread pieces of snapper, alternating with onion, citrus
sections and mangoes.
Preheat grill.
Grill on each side for 1 minute. (to obtain grill marks and slightly heat
through)