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Re:E. osiris flower, use of curtain material, deformed swords

>Date: Mon, 26 Jan 1998 16:10:55 -0500 (EST)
>From: Christopher Clubine <cclubine at yorku_ca>
>Subject: E. osiris flower.
>Hello - If any one on this mailing list has ever sucessfully kept an
>Echinodorus osiris, then would they please email me?  I want some advice
>on getting my Echinodorus osiris flower stalk to bloom - flower power,
Just keep the flower stalk at or above the surface of the water, and you
should get flowers.  However, you won't get any seeds because E. osiris is
triploid (three sets of chromosomes) and, therefore, is sterile.  It can
only be propagated from the little plantlets that grow on the flower

>Date: Mon, 26 Jan 1998 16:15:52 -0500
>From: Beverly Erlebacher <bae at cs_toronto.edu>
>Subject: Re: Paludarium - drainage issues

>...I suggest you put a layer of large gravel or small pebbles in the land area,
>then cover it with fibreglas window screen or nylon sheer curtain material
>or that spunbonded weed barrier or other porous, non-rotting, non-toxic
>material, and put your soil mixture on top of that........

Nylon sheer curtain material gives off substances that are quite toxic for
aquatic plants.  I know this because, years ago, I tried to use it as a
material for Daphnia cages---little cages that contained Daphnia that fed
on green water while protected from my fish. The cage idea worked, but my
plants stopped growing and started dying from some substance that came from
the curtain material and that continued to be produced even after the cage
had been in the tank for over a year with several water changes.  Instead
of nylon curtain material, try a monofilament screen that isn't nylon or
dacron.  See "The Saga of the Daphnia Cage." TAG 5:3, pp 50-54 for more
about my experiences with Daphnia cages.
>Date: Mon, 26 Jan 1998 22:32:32 +0000
>From: A M Moore <andy at ascot_u-net.com>
>Subject: Deformed Amazon Swords ?
>Has anyone ever come across a situation where the leaves of their Amazon
>Sword plants start growing narrow and start curling up along the edges ?
>These are established leaves on the plant - not new ones.......

It is hard to see how an established leaf could become more narrow except
by dying from the edges inward towards the midrib.  Magnesium deficiency
could cause this, but it usually causes the leaves to yellow from the edges
inward before the edges die.  I would add some MgSo4 unless you know you
have a supply of magnesium in the water.  If that doesn't cause a recovery,
I would try potassium, calcium, and a trace (about 0.1 mg/liter) of boron.

Paul Krombholz, in soggy central Mississippi