Tony
Nick Zarlinga wrote:
>
> <I always feel that using airstones reduces the amount of noise in the
> <aquarium, thus reducing stress, something that I do think may be important
> <for Ostariophysan fish in particular.
>
> Ok, thanks. I can now tell everyone that I am not the biggest fish geek
> anymore. I had to look up Ostariophysan. I'll stick with my allochthanos
> (still can't spell it right) as my big fish geek word ;)
>
> I can't say that I have noticed any change in behavior using airstones vs no
> airstones- or at least I haven't been in tune with it. I guess it would
> make sense for exceedingly small tanks. Interesting point.
>
> As far as using airstones, unless it is in an airdriven skimmer, I usually
> just don't bother. I agree that they seem to last longer in fw than in sw
> systems, but it still is not worth my while to change them regularly for the
> extra benefit they give. Since we tend to overcompensate our system in
> other ways, I feel that we are still safe, I guess.
>
> Bottom line for me... simple is better (usually). Less gazactometers, the
> more stable the system? (That is not to say that it is not fun to play with
> all the buttons some time ;)
>
> Nick Zarlinga
> Aquarium Biologist
> Cleveland Metroparks Zoo
> 216.661.6500 ext 4485
>
> -----Original Message-----
> From: owner-nanfa_at_aquaria.net On Behalf
> Of Pete Liptrot
> Sent: Wednesday, July 09, 2003 6:17 PM
> To: nanfa_at_aquaria.net
> Subject: Re: NANFA-- RE: now airlifts; splitting hairs
>
> > With all this said, I rarely use airstones simply due to the b.s. factor.
> > Although I am primarily concerned with maximum flow rate, I will sacrifice
> > some of that flow for not having to change the dang airstones every time I
> > pass the tank!
>
> Nick, do you find that fish behaviour alters at all depending on the bubble
> size?
> I always feel that using airstones reduces the amount of noise in the
> aquarium, thus reducing stress, something that I do think may be important
> for Ostariophysan fish in particular.
> I have filtered almost 80 off-show aquaria from 5 gallons to 150 gallons
> using nothing much more than air driven filters, and been very satisfied
> with the performance.
> When you mention changing airstones, is this in fresh or marine water? I
> normally find that in freshwater airstones last at least a few months before
> performance starts to drop off to any degree.
> I agree, certainly in narrow uplifts (sponge filters etc.), airstones
> produce far better results that coarser bubbles, and I am running every
> aquarium here in my home office off a single Hoffman (now produced by
> Algarde), something that would otherwise take 8 power heads.
> Pete
> --
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/ For more information about NANFA, visit our web page, http://www.nanfa.org