I did about 1tsp a day in about 6 bottles too. I just used table salt. The florinef  and cortef dosage would more than when they were older too.  Especially the florinef dosage.  Now the boys (ages 5 and 10)  only take one florinef pill a day but as infants it was several pills in the morning and at night.  Plus the cortef 3 times a day.