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Sv: Re: Java Fern

Got this from Tropica (www.tropica.dk (or is it www.tropica.com)). They
have three different types of java ferns, this is the most common: 

Microsorum pteropus

Tropica No. 008

Family Polypodiaceae
Part of the world South-East Asia
Height 20-35 cm
Width 12-18 cm
Light requirements low-high
Temperature 22-30oC 
Hardness tolerance average-hard
pH tolerance neutral
Easiness easy

Microsorum pteropus is a water fern and is found attached to roots and
rocks in Nature. The olive green leaves grow from a horizontal rhizome. To
begin with the new plant should be attached to the substrate with a thin
wire or a rubberband until new anchor roots have been formed. 
Microsorum pteropus does not require any special attension and surrives and
even grows at very low light intensities although at a lower growth rate.
It accepts very soft water and up to even brackish water. Microsorum
pteropus is easily reproduced from small adventitious plants which is
formed on the older leaves. This process is induced if the leaf floats at
the surface and the new plants grow bigger. 
The black spots forming on the abaxial leaf side is not due to patogens as
often interpreted but rather sporangia needed in the sexual reproduction of
the plant. You can greatly enhance the application of this plant - try to
take a look at the article Plants cultivated on stones and tree roots!
Also, the article Microsorum pteropus 'WindelÝv' and Microsorum pteropus
'Tropica' provides more thorough information. See also fish-proof plants
from Tropica Aquarium Plants. 

Thomas D. Kryger
TDKryger at post6_tele.dk

> Date: Mon, 13 Oct 1997 07:51:06 -0700
> From: mfmarion at juno_com (Michael F. Marion)
> Subject: Re:  Java Fern
> I would like some advice on growing Java Fern.
> Question:  How do I get the plantlets taken from adult leaves to grow to
> the same size as the parent plants?
> About 6 months ago I bought a couple bunches of Java Fern. I do not know
> the specific variety.  These were adult specimens about 10 or more inches
> long, with plantlets growing on the leaves.  The plantlets produced were
> prolific.  Since then the adult leaves have died and gone to fern heaven.
>  I have attached the plantlets to bogwood using thread and they are
> healthy looking, green and pretty and they have actually grown new
> leaves.  The plantlets have grown to about 2 inches
> I have a 15 gallon tall tank.  The water is soft and neutral at about
> 80-82 degrees F.   I am using one 15 watt, wide spectrum fluorescent
> light which I keep on about 4 hours a day (I understand that they need
> low light levels).  The filter is an undergravel.  And I am running a
> large airstone to help keep the water moving.  I change about 2-3 gallons
> of water every two weeks.  I also have about a dozen Tiger Barbs.
> Thanks,
> Mike Marion
> 4516 132nd Place NE
> Marysville, Wa 98271-7802
> mfmarion at juno_com