ammonia drives the pH up, but the lower the pH the safer the ammonia.
nitrites drive the pH down. salt helps prevent nitrite toxicity.
if either is really high a big water change will remove enough that shifts in pH are
going to be more than offset by the benefits of lower toxins. INgrid

If one does a water change when the ammonia is high, but the pH has crashed
so it is not toxic, doing a water change with pH 7.1 & up, will turn that
ammonia toxic and kill the fish almost post haste. The higher the pH the
faster the kill.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
List Manager: Puregold Goldfish List
http://puregold.aquaria.net/
www.drsolo.com
Solve the problem, dont waste energy finding who's to blame
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unfortunately, I receive no money, gifts, discounts or other
compensation for all the damn work I do, nor for any of the
endorsements or recommendations I make.