I've never heard of the "salt" being added to the water. How much do you add, tablespoon to a five gallon bucket? That's interesting. Cold water and air and I've had mine live all through a three day fishing trip. Jim's Bait Shop adds oxygen to the bags if you buy three dozen or more. (For us suckers that don't catch our own!) This seems to keep em extra lively throughout the weekend.
Hoppes