Re: [AGA-Member] Re: UH heaters

["S. Hieber" <shieber@yahoo.com>]

I'd guess not -- I"d guess that the differentials are too
spread. But anyhow, the roots themselves move things
through the substrate. And that appears to be as much as is
needed in a healthy tank.

sh
--- GG Info <info@glass-gardens.com> wrote:
> I guess I'm just not convinced of the value of a UG
> heating system, most of
> the tanks I've seen don't have them and still look
> amazing.
> 
> I understand the theory, just not sure if it really
> applies in a micro
> system like a planted tank.
> 
> I have read from several sources including Don Matakis
> that it is important
> to have a closed bottom stand to prevent the substrate
> from cooling, but all
> my stands have open bottoms save for one, and that one
> gives me the most
> trouble.
> 
> I have considered that having the bottom of the tank
> exposed does create a
> temperature differential between the water column, and as
> long as the
> substrate isn't cool enough to affect the roots, would
> actually create a
> limited convection current along the same theory of
> heater cables.
> 
> Any thoughts?
> 
> 
> 
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