the standard dosage for Aq salt is 1-3 teaspoons per gallon.
for quarantine purposes, 1tsp/ gallon is recommended.
for illness or disease up to 3tsp/ gallon can be used.
make sure to predissolve the salt in a separate container of conditioned water.
if you are ever lookin to dose 3tsp/ gallon, start from 1tsp/ gallon and slowly up the dosage over the course of a day to 3 tsp/ gallon.
it is recommended that you wean the fish off salt treatment after 2 weeks, as salt can be damaging in the long run