Melt butter and sauté garlic in it until soft, approximately 3 to 5 minutes.
Cut in half 2 limes and squeeze the lime juice into the garlic butter.
Using a basting brush, coat both sides of each snapper fillets with the butter mixture.
Sprinkle fish seasoning and salt evenly over snapper fillets to season.
Place snapper fillets directly on your tinfoil covered grill & grill snapper fillets for about 10 minutes, basting occasionally with the remaining butter sauce.
Carefully turn the fish on the grill and cook another 10 minutes.
When completely cooked, the flesh should be opaque in color and easy to flake with a fork. Garnish snapper with thin slices of the 3rd lime. ½ Tsp. Salt.