1. Pour the gelatin and boiling water into a bowl and stir until the gelatin is dissolved. Have an adult help with the boiling water.
2. Put some ice cubes into your measuring cup and add cold water until it measures 1 1/4 cups.
3. Add the ice water to the gelatin mix, and stir until slightly thickened. Then remove any unmelted ice. (If the mixture is still thin, refrigerate until slightly thickened.)
4. Pour the thickened gelatin into 4 dessert dishes.
5. Place the gummy fish in the gelatin. They should look like they are swimming in water.
6. Refrigerate until set, about 1 hour.