Airstones/Goldfish hearing

Do gf have good hearing? Just wondering if having airstones constantly
making noise with no stopping bugs the fish.



Craig

excellent hearing.
who knows, but the aeration is too important.
Ingrid

(who me?) wrote:

Do gf have good hearing? Just wondering if having airstones constantly
making noise with no stopping bugs the fish.



Craig



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
List Manager: Puregold Goldfish List
http://puregold.aquaria.net/
www.drsolo.com
Solve the problem, dont waste energy finding who's to blame
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unfortunately, I receive no money, gifts, discounts or other
compensation for all the damn work I do, nor for any of the
endorsements or recommendations I make.

I don't know about the fish but the noise annoys me!

There's more than one school of thought on this but I go with those
who argue that if the surface is kept moving then airstones do not
greatly increase gas exchange. The spray bar from an external filter
can be set to move the surface with no noise whatsoever. Internal
filter outlets can also direct across the surface of the tank. Its all
you need.

So I don't think you need an airstone unless you like the look of the
bubbles.

Stealing myself for the howls of protest!

No, there is physics and then there is myth, not two schools of thought. Of course
oxygen is exchanged all the way up the track of bubbles.
the real point is how are the GF doing. I dont find the sound obnoxious, but why not
put the fish in a room where the noise is not so bothersome. Ingrid

(Mick Manford) wrote:
There's more than one school of thought on this but I go with those
who argue that if the surface is kept moving then airstones do not
greatly increase gas exchange.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
List Manager: Puregold Goldfish List
http://puregold.aquaria.net/
www.drsolo.com
Solve the problem, dont waste energy finding who's to blame
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unfortunately, I receive no money, gifts, discounts or other
compensation for all the damn work I do, nor for any of the
endorsements or recommendations I make.

wrote in message ...
No, there is physics and then there is myth, not two schools of thought. Of course
oxygen is exchanged all the way up the track of bubbles.


"Most modern tanks don’t really need supplementary aeration.
Sensible stocking, regular maintenance and power filters that produce
lots of flow, virtually guarantee oxygen levels at saturation in most
cases. So when it is not incorporated into filtration it’s often
used decoratively."

Thats from the website of Practical Fishkeeping magazine. Yes gas
exchange can take place as the bubbles ascend but if things are pretty
much at saturation already its not needed.

It ain't physics by the way - its chemistry.

It is physics when talking about the surface to volume ratio of gas exchange and
other physical principles that affect the movement of gas
http://www.scuba-doc.com/physics.htm
there also is the chemisty, which affects CO2 more because it chemically reacts with
water
http://www.science.uwaterloo.ca/~cch...waterphys.html
Saturation is not the only goal of aeration. Good aeration also moves other kinds of
gases out of the water. Which is why experts like the Goldfish Guru recommends at
least 1 large airstone per 10 gallons of water. Ingrid

(Mick Manford) wrote:
Yes gas
exchange can take place as the bubbles ascend but if things are pretty
much at saturation already its not needed.

It ain't physics by the way - its chemistry.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
List Manager: Puregold Goldfish List
http://puregold.aquaria.net/
www.drsolo.com
Solve the problem, dont waste energy finding who's to blame
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unfortunately, I receive no money, gifts, discounts or other
compensation for all the damn work I do, nor for any of the
endorsements or recommendations I make.