Rocks and PH

[Buckfins]

Hi all....I was wondering how much of a change in the PH do rocks in a tank make. I was thinking of putting several pieces of Yavapai Tri-Color Stack Stone in for my Yo Yo Loaches. Any input on this would be greatly appreciated.

 

[rlederer]

According to the sales pitch for the stone, it appears that they will not affect pH.