I would like to know why my tap and tank water differ. I'm sure theres a reason, I just need to be educated
Tap - PH 8.8, GH 161, KH 143
Tank - PH 7.4, GH 179, KH 53.7
Tank is an established 46g bowfront.
Artificial gravel, emperor 400 and Magnum 250.
I pre-treat my tap water with Tap Water Conditioner, thats it.
Every few days I do a 10-25% water change.
Inhabitants: A few angels, a couple large headlamp tetras, 5 red fin tetras, a pair of ADF's, a zillion trumpet snails, 4 amazon swords and a few other plants that I'm not really sure what they are.
So my question is, why is the PH and KH so much lower in the tank than from the tap?