Re: [APD] the impersistence of the micro bubble

["Mariano F. Bonfante" <mariano_bonfante at hotmail_com>]

I have the same experience many years ago, miraculous tiny bubbles in salty 
water.

But my question was simpler: I have the CO2 hose connected to the Fluval 403 
canister input, so what would be the difference with this method and for 
example, a ceramic reactor?. What about other types of reactors?. Is there 
any worthwhile enhancement?.

TKS in advance.

Mariano




>From: "S. Hieber" <shieber at yahoo_com>
>Reply-To: aquatic plants digest <aquatic-plants at actwin_com>
>To: aquatic plants digest <aquatic-plants at actwin_com>
>Subject: Re: [APD] the impersistence of the micro bubble
>Date: Sun, 2 Oct 2005 15:30:10 -0700 (PDT)
>
>When I was a kid I thought the tiny bubbles looked cool at
>asked around at several stores (this is before the web) on
>how one got the tiny bubbles to occur. Several places seem
>so perpelexed by the question, you have thought I asked
>them about growing plants underwater. Finally, at one
>place, the clerk said, "That's saltwater. The tiny bubbles
>happen in saltwater.
>
>You can drop an airstone into freshwater and into "marine"
>and see a tremendous diff in bubble size. Someone else
>might explain it, but that basic see-for-yourself example
>is repeatable and the results quite consistent.
>
>Doesn't bubble formation have to do with surface tension?
>
>You can force tiny bubls with finely porous airstones or by
>forcing the gas into the vanes of a pump. As soon as the
>velocity reduces the bubbles will gather to form larger
>bubbles unless you scatter them quickly and keep them
>apart.
>
>sh
>
>--- Jerry Baker <jerry at bakerweb_biz> wrote:
>
> > Mariano F. Bonfante wrote:
> > > I talked with a marine tank representative and he told
> > me that a venturi
> > > would give thick bubbles in this case, not the type we
> > see in marine water.
> > > What will happen in fresh water with CO2?.
> >
> > I don't know. I have been personally unable to achieve
> > the small bubbles
> > you see in saltwater. I believe this is due to the
> > density of freshwater
> > vs. saltwater, but I'm not positive on that.
>
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