Profile shouldn't affect PH, but I've read posts saying that sometimes it does, and the common thread seemed to be unrinsed profile. So, rinse it and it won't change a thing. This is only what I've read. In my experience it has had no affect on my PH, but then, I rinse mine for hours. Cameron Case TD7894@aol.com wrote: > Thank you all for your advice. I tested my tap water and it is the same as > the tank although I know that three weeks ago my tap water was about 40 ppm > higher in Gh than it is now. I think that I shall go buy some Seachem acid > buffer. How often should I check the Ph after I reach my target ph? Is once > a week often enough? I want to set up a new tank using profile as the > substrate. Will this raise Ph? It is a fired clay product. Teresa > > ------------------------------------------------------------------------- > This is the apistogramma mailing list, apisto@listbox.com. > For instructions on how to subscribe or unsubscribe or get help, > email apisto-request@listbox.com. > Search http://altavista.digital.com for "Apistogramma Mailing List Archives"! ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!