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Re: Aquatic Plants Digest V1 #168



> From: ac554 at freenet_carleton.ca (David Whittaker)
> 
> Just a wild guess, but maybe the DUPLA product contains a sodium salt
> of EDTA instead of Fe:EDTA, Mn:EDTA etc., i.e. metals already chelated.
> I think that Allgayer and Teton mention this method in their book.
> Another reason not to use DUPLA?

Umm, what's the other reason?

George