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RE: cell pore

Is all Lava Rock the same?  Up to this point my only exposure to it has been as
rocks in my Tang tank.  I love it for that because of all the hiding holes etc.
Using it as a filtration media is very interesting and as pointed out probably
a good deal more cost effective then bio-max or bio stars or whatever new bio
stuff they are trying to sell us.

Is all Lava Rock just lava rock?  Do I need to worry about pore size?  For
years I have used the Ceramic bio max cylinders in my aqua clear filters.  They
really allow me to max out my fish load.  Maybe Lava Rock would be a good
replacement.

???????
john

On 28-Mar-01 -RJ- wrote:
> Lava rock and saltwater "live rock" have similar properties. They are both
> extremely porous materials. They provide interior anoxic areas where
> nitrifying bacteria can live. The cell pore material is intended as a
> replacement for "live rock" in salt water. It can be less expensive and more
> easily formed than conventional "live rock". It also has the benefit of
> bringing in less containments.
> 
> So why should salt water hobbyists just not use lava rock? As to my
> knowledge lava rock is relatively inert and certainly less expensive than
> both "live rock" and cell pore.  The answer is simple. Money. There is much
> more profit to be made in manufacturing and marketing cell pore than in
> selling lava rock.
> 
> I have examined cell pore and other than the really neat pinging sound it
> makes when you drop it I really do not see any real benefit to it in fresh
> water. I believe that it is considerably too porous for use in anoxic
> denitrification. And it would let the water pass through the Henri filter
> much too directly.
> 
> As I read the article in TFH it is recommended as a sub bedding under the
> dolomite gravel instead of the more conventional plenum. I imagine that it
> would work well for this propose. As far as its use in building an
> artificial reef instead of live rock, I believe that it will be considerably
> less effective, in terms of improving water quality. Live rock contributes
> to the chemistry of salt water as well as providing an aerobic environment
> on its surface and an anaerobic environment at its core.
> 
> The Europeans have been using lava rock for years. Therefore it seems
> logical that Henri used it in his design. He basically combined two proven
> technologies. Lava rock and the drip filter.
> 
> If I were reengineering Henri's system for mass market I would consider
> switching from lava rock to cell pore or a ceramic media. Primarily for the
> sake of appearance. If it looks too easy to build who is going to pay you
> the big bucks for it?
> 
> One final note: I set up a 1 gallon fish tank using a chunk of lava rock as
> a filter. No Drip, No air, no motor, no gravel and it kept the water
> extremely clear and the fish healthy. Partial water changes were done every
> three weeks or so. I tested for ammonia and nitrite and never found any. At
> this point, I am even considering using lava rock instead of gravel to see
> if the smaller pieces have the same effect.
> 
> Best regards,
> 
> -RJ-
> 
> -----Original Message-----
> From: owner-killietalk at aka_org [mailto:owner-killietalk at aka_org]On
> Behalf Of Allen N Sandra
> Sent: Tuesday, March 27, 2001 7:18 PM
> To: KillieTalk at aka_org
> Subject: cell pore
> 
> 
> Yup read about cell pore in the TFH article.  Not my kinda deal.  Real
> curious as to why people want to change the material in the DeBruyn filter
> so bad when it works so good.  My  opinion, for what it is worth, is two
> part, don't knock it till ya try it, and if it works don't fix it.
> 
> Boat
> Tampa, FL
> TBAS, SKS, AKA
> 
> 
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> 
> 
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----------------------------------
E-Mail: John N. Alegre <listhub at libros_andante.mn.org>
Date: 28-Mar-01
Time: 21:31:54

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