Yeah my tap water tested to 4ppm. No wonder why the mom and pop stores around here said go slower on water changes...even segrest farms (a big big distribution center) who is within walking distance to my house said the water in our area is very hard to work with. And my ghost shrimp had babies that lived so i am going with mostly how the fish are doing. I still test the water and yeah its not done cycling I'm not adding any fish for 3 more weeks so it will be a total of 6 weeks with fish in.
Prototype (what I named the school of tetras) do show more pale at night when I'm up, I work overnights, but they are active and eating and no one is swimming funny. And even the one that had a half eaten fin has his fin growing back.