Try a hydroponics supply store.I am not sure if they will have tannic acid,but they will have products very simular to blackwater extract at a fraction of the cost of your lfs. Vern -----Original Message----- From: Marco Lacerda <marcolacerda@ax.apc.org> To: apisto@admin.listbox.com <apisto@admin.listbox.com> Date: March 25, 1999 7:10 PM Subject: Re: tannic acid in powdered form >> I've never heard of this before. If it exists, who makes it and where can a >> person get it? >> >> G. Kadar > >I buy it in Brazil, in a company based in Sao Paulo, but they import it >from overseas, probably from USA or Germany. >I suggest you check it with a Chemical comapany in US, it shouldn't be >difficult to find it. >Some Apisto books (if I'm not wrong Koslowski's book) suggest that good >acid water can be prepared with a combination of tanic acid (mostly for >brown color, as it is a "weak" acid and does not drop much pH values) >and HCl. But unfortunately no quantities are given, neither by Römer or >in the aquarium booksŠ > > > >------------------------------------------------------------------------- >This is the apistogramma mailing list, apisto@majordomo.pobox.com. >For instructions on how to subscribe or unsubscribe or get help, >email apisto-request@majordomo.pobox.com. >Search http://altavista.digital.com for "Apistogramma Mailing List Archives"! ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!