When adding aquarium salt to an aquarium, is it safe just to pour the salt in?

freshwater fish do not need salt ... it does not help with stress ... if you use a good dechlorinator it helps with the slime coat which is all they need ... once you put that salt in it NEVER evaporates, it will always be there ... and the times when it could actually be used for sickness, if you add more, you are messing up the water ... forget the salt ... pantyhose is okay ... rinse well under regular water and then soak in some siphoned off tank water before putting in the tank ... there is a guy on ebay who sells covers for the intake of a filter that is like a very small mesh tube ... it does not affect the filter in any way but protects anything like fry being sucked up :O)