What fish can tolerate aquarium salt?

Zebra DaniOS can handle a small amount of salt in their water but it is not a smart thing to have in your fresh water tank. The reason for this is, salt can be used as a medication for some fish ailments. If there is salt already in the water, in order to dose the fish you will have to put in a measured/correct amount of salt thereby overdosing the tank and maybe killing the fish.