Hello once again all. I am loaded with questions...This is a great site that im glad I found! My new question for you all is about Spring water versus My towns tap water which I know has a bit of chlorine in it. I have come to understand that chlorine is deadly to my Oscar. I am wondering if natural spring water is any better for my fish? I have found many natural water sources coming directly from the ground in the area of the world that I live in....These sources actually come right out of the ground in front of you from holes in the dirt. If I were to use this water...Would it still need to be chemically treated?