Yeah, I compared my tap water to the conditioned tap water and both my tanks. I had just done a 50% water change so at the time, everything was the same except the unconditioned tap water had a lower pH.
The water conditioner from Walmart... BettaSafe? I have pictures of the tests I did and the pH change is very apparent. But it could just possibly cause a false reading? I will have to test the water treated with prime once I get it, hopefully tomorrow.
Ours isn't either, it doesnt even sell thermometers that work or have live fish anymore. And prlly never had bettas. Though now it leans towards betta items, like the tiny tanks, bad betta pellets and flakes....maybe mine's just wierd.