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Re: [APD] Excel and U.V. light
The ingredients are listed on www.seachem.com.
From: Raj [mailto:ggrk at blr_vsnl.net.in]
Sent: 31 August 2005 05:17
To: aquatic plants digest
Subject: Re: [APD] Excel and U.V. light
Could I shamelessly ask what Flourish contains? I have not
found any available here in South India.
>Chelates (such as EDTA) are very stable under typical aquarium
>conditions and do not degrade at a rate rapid enough to provide any
>meaningful level of iron in this manner. The method by which plants
>extract iron from EDTA is when the EDTA-iron is pulled down into the
>root zone where the pH is much lower and thus conditions are
>conducive to extraction of iron by the plants directly as it is
>released from the chelate under the acid conditions or the plants can
>also utilize phytosiderophores to extract the iron directly. However,
>in the water column there is no release of iron (-> insert shameless
>pitch here - use Flourish Iron to target leaves, stems as well as
>root zone - it is non-EDTA based).
>Gregory Morin, Ph.D. ~~~~~~~Chairman/CEO~~~~~~~~~~~~~~
>Seachem Laboratories, Inc. www.seachem.com 888-SEACHEM
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