Re: grit and gravel
- To:
- Subject: Re: grit and gravel
- From: M* T*
- Date: Wed, 27 Oct 1999 00:14:29 -0400
No kidding? This is most interesting to know. Seems like they can coat
just about any substance with plastic/polymer? these days. I'd say you're
right and it wouldn't hurt plants if it doesn't hurt fish...but being
careful around food plants is a good thing. Of course, there just might
be the odd plant sensitive to it, so would pay to do some testing before
filling a pot with it for something really precious. Plants are tough, but
some are also very sensitive to their environment and anything petroleum
based (which I am assuming the coating would be...could very well be wrong,
but...). You guys who keep aquariums need to do some experiments and tell
us what happens.
Marge Talt, zone 7 Maryland
mtalt@clark.net
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> From: Dean Sliger <deanslgr@kode.net>
> Date: Saturday, October 23, 1999 9:45 AM
>
> Many aquarium gravels, even the "natural" colored ones, are treated with
a
> (polymer?) coating which, supposedly, prevents unwholesome substances in
the
> gravel -- coming from a variety of unknown sources -- from leaching into
the
> aquarium water. No idea how they do this to gravel, but friends in the
> wholesale pet supply business have warned me that this is done. This
wouldn't
> necessarily be a bad thing for ornamental plants but I hesitate to use it
in
> beds where I'm going to be interplanting herbs or other food plants.
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