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RE: Lava Rock

Is there an 'optimal size' of this? Would lava rock
'gravel' have more surface area? What I have read so
far makes it sound well worth using, wondering if
there is an optimal size?
jake

--- "Stoecker,Michael,FRANKLIN PARK,NC&C"
<michael.stoecker at us_nestle.com> wrote:
> Sorry for the stupidity.  It should have read
> "...200 lbs./cubic yard more
> than the red."  Correct the next sentence as well.
> mike stoecker
> 
> > -----Original Message-----
> > From:	Jeremy Adams [SMTP:killifish at home_com]
> > Sent:	Monday, April 02, 2001 1:58 PM
> > To:	killietalk at aka_org
> > Subject:	Re: 
> > 
> > > I noticed that the black type weighed 200
> lbs./ton more than the red.  A
> > > quick call to them, and I found out that the
> black is less porous than
> > the
> > > red and hence more dense and thus weighs more
> per ton.
> > >
> > Did it weigh more per ton or more per a given
> volume? To me this sounds
> > like, which is heavier, a pound of lead or a pound
> of feathers.
> > 
> > Just curious and thanks for the info. Luckily for
> me, I have 'tons' of
> > this stuff about 70 miles away from where I live.
> I collected several
> > buckets a few years ago to use in my fish pond
> filters. I have never
> > actually used it in my pond filters yet, but I am
> using it in a canister
> > filter on a 140 gallon tank.
> > 
> > Jeremy
> > 
> > --
> > 
> > 
> > 
> > ~~~~~~~~~~~~~My Life Story~~~~~~~~~~~~~~~~
> > Jeremy Adams - Corvallis, Oregon  USA
> > Killifish-Frogs-Toads-Aquatic Plants-Fish Ponds
> > Bombina orientalis web page:
> > <http://members.home.net/killifish/bombina.html>
> > Loyal Macintosh user since 1988
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > 
> > 
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