RE: [GSAS-Member] Dolomite and alkalinizing buffers

["Hess, Clay A" <clay.a.hess@boeing.com>]

Be careful when using oyster shell  as a buffer.  It compacts very
quickly in a tank if used as a substrate.  This compaction makes it
difficult to clean the tank effectively if you are using much of it.  I
would suggest either using it in your filter in a bag, or mixing it
50/50 or less with gravel.

Clay

-----Original Message-----
From: Kritter714@aol.com [mailto:Kritter714@aol.com] 
Sent: Friday, February 25, 2005 4:42 PM
To: gsas-member@thekrib.com
Subject: Re: [GSAS-Member] Dolomite and alkalinizing buffers


Most feed stores sell oyster shell gravel (ground up shell) as a
supplement  
for chickens try Lande feed in maple valley or Dels in auburn.  Lande
has a  
delivery service and you should be able to get large amounts.
   Elaine
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