So if test number 2 showed less ammonia, rinse the tube and cap thoroughly with distilled water and then use a paper towel to thoroughly wipe the tube and cap dry (both inside and outside).
Test the distilled water with the 2nd test kit again and see if the total ammonia goes down (3rd test)
Test the distilled water with the 2nd test kit again and see if the total ammonia goes down (3rd test)
