How do Air Stones Work??

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How do Air Stones Work??

Postby surreygirl » Tue Oct 28, 2008 7:26 pm

I'd like to get one for my tank for decoration and to give the fish some bubbles to swim in. I'm just not sure how you connect them up.

Anyone have any advice?



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Postby davespages » Tue Oct 28, 2008 8:02 pm

You will need ain air pump.

The cheapest air pumps are Diahphram air pumps. They utilise a permanent magnet on an arm, conected to a diaphram, As the alternating current from the mains voltage (50hz) changes the poles of the electomagnet it pulls and pushes the permanent magenet from both polls.

This happens at 50hz, 50 times a second.

An Air stone bassicly diffuses this output of air in the water, Smaller bubbles rise to the surface slower, allowing for more time... more oxygen to dissolve into the water.

As they rise to the top, they drag water with them in a "columb"
Water at the surface is richer in oxygen so this turns over the water, transfering oxygen rich water lower down in replacement of oxygen depleted water.

Larger bubbles wont provide the same oxygen content as the same volume of air that small bubbles will produce.

Cheap air pumps can be obtained for as little as £6-10 and an air stone with pipe as little as £2.

The last "interpet" air pump i bought was £7.99 and came with a free air stone and 1metre of air tube!
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Postby comp.wiz » Tue Oct 28, 2008 8:50 pm

You just need to buy the componants (air pump, air stone, air line). Place the air stone in the water and place the air pump out of the water. Make sure the air stone is weighed down or it will rise to the surface. Turn the air pump on and you have bubbles.

Make sure that either you get a check/one way valve or place the air pump above the tank as the water will syphon back out of the tank whent the airpump is off.
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