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- To: Aquatic-Plants at actwin_com
- Subject: Re:Iron
- From: Paul Krombholz <krombhol at teclink_net>
- Date: Sun, 6 Apr 2003 18:36:28 -0500
- In-reply-to: <200304061049.h36AnVKb015816 at otter_actwin.com>
- References: <200304061049.h36AnVKb015816 at otter_actwin.com>
Small floating plants of Ceratopteris are good for measuring iron
availability. Pale new growth where the older leaves are greener is
the sign of deficiency. Some plants are better than water sprite at
getting iron. Floating Bacopa monnieri and Anubias show no deficiency
in the same tank where Ceratopteris shows deficiency.
Paul Krombholz in stormy central Mississippi, with wind and hail
damage, flooded roads and currently under the second tornado warning
of the day.