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Re: Ammonia in substrate



	As I recall, Osmocote has urea in it.  That will be hydrolysed to 
carbon dioxide and ammonia.  You can expect some free ammonia in a 
substrate containing Osmocote tablets.  The fact that you can smell
it implies that the pH is pretty high down there (which I think will
also speed up the hydrolysis).

-- 
Paul Sears        Ottawa, Canada