I noticed when I did my weekly waterchange on Sunday, that my ph does not change very much at all.The ph from the tap is 7.5 and my tank ph is normally kept at 6.3 or so. I did a large w/c (70%), and the ph went to about 6.5. My ph probe gave me the same result as my test kit.I would think that with such a large water change, the ph would have moved more then this. Can anyone offer any reasoning as to why the ph stayed realtively stable? Thanks,
John
John