Re: [APD] Planted tank urban myths - aerial roots

["Nick Ternes" <woodland_gardens at gmail.com>]

I would say the reasons are species dependant.  Some species will grow them
in reaction to environmental conditions, some will grow them in reaction to
stress, and some will grow them to propagate the species.  Water Millfoil
spreads vegetatively by snapping in pieces, and rooting on the substrate.
Sometimes they will grow aerial roots first, and sometimes not.  (this may
or may not be species dependent)  Many terrestrial plants do the same
thing.  I would say it's perfectly normal, whether reacting to an
environmental situation, stress, or trying to increase it's population.

Nick Ternes
Oostburg, WI
WAKO
AKA



> >
> > On Dec 15, 2006, at 10:00 AM, Greg Fiske wrote:
> >
> >> The one response to the aerial roots question that gets posted on
> >> forums that never seems right to me is that aerial roots are
> >> perfectly normal.  If it is perfectly normal, then why, in my well
> >> established (for 3 months) tank, do I never get aerial roots?  To
> >> me it is an indicator of stress.  For example, I left my controller
> >> off during maintenance on my tank.  My rotala "green" responded by
> >> sending out fine roots (interesting that they were finer than
> >> normal).  Maybe the plant is trying to move and search out a better
> >> location?  Maybe the plant is trying to get nutrients from the
> >> water column?  The last one I mention because the other time I
> >> notice aerial roots is when I've planted the tops of my rotala
> >> green.  It seems like since the gravel roots haven't developed, the
> >> stem plant is trying to get nutrients from the water column.
> >>
> >>
> >>
>
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