In a small saucepan, add limeade and sprinkle over gelatin. Let bloom, 2 minutes. Turn heat to medium and whisk until gelatin is dissolved. Remove from heat and stir in tequila and triple sec.

Transfer mixture to large measuring cup and divide between small plastic jello shot glasses. Place in refrigerator until set, about 2 hours.

When ready to serve, run a lime wedge around the rim of each shot glass and dip into coarse salt.