Re: [APD] pH in the filters & root zone

[Greg Morin <greg at seachem_com>]

>Subject: Re: [APD] pH in the filters & root zone
>To: aquatic plants digest <aquatic-plants at actwin_com>
>
>
>          How about Citrate or Tartrate iron compounds ?


ferrous citrate: practically insoluble in water, ferrous tartrate: also poorly soluble in water.


>
>          I suppose that iron-Glutonte will be less toxic to fish
>than plain Ferrous sulfate.
>
>          Any comments on Fe-EDDHA, I read somewhere its
>better suited to alkaline (Higher pH) environments?

Fe-EDDHA is an even stronger chelator of iron than EDTA, not really the best choice in an aquarium environment if you are trying to promote availability to the plants.

Regards,
Greg

-- 
Gregory Morin, Ph.D.  ~~~~~~~Chairman/CEO~~~~~~~~~~~~~~
Seachem Laboratories, Inc.      www.seachem.com     888-SEACHEM
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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