PAwrangler08
Aquarium Advice Freak
I'm not sure about spring water either. I would get some of each and test it before making an investment of too much into it so you know what the parameters of of those particular brands.
That's what I was thinking. What I'm doing so far tonight is setting a gallon of tap water with Stress coat in it out over night. And also setting out some untreated water out over night. See if that mysteriously changes anything.