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Fe2+ or Fe3+ ? that is the question.

To: aquatic-plants at actwin_com
Subject: Fe2+ or Fe3+ ? that is the question.
From: Yves Durocher <yves.durocher at nrc_ca>
Date: Sun, 19 Apr 1998 14:45:52 +0000

What is the best bioavailable form of iron for aquatic plants:
Fe2+ (e.g. FeSO4) or Fe3+ (e.g. FeCl3) ?
Also, is there any reported toxicity related to chelating agent (EDTA
and others) accumulation in the aquarium ?

Thanks for your advises !

Yves

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