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Air stones and the noise they make

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Air stones and the noise they make Empty Air stones and the noise they make

Post by Sandman1969 on Sun Jul 26, 2020 2:00 pm

Is the noise from the stones or the bubble walls ok for fish or is it too loud? In the tank seems kinda loud when I put my ear against the side.

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Air stones and the noise they make Empty Re: Air stones and the noise they make

Post by alexmtl on Mon Jul 27, 2020 11:26 am

Hi Sandman1969,

That is an interesting question. The sound is generated by the diaphragm air pump. The pump works through magnets, which fluctuate the current to create continuous vibration of a rubber membrane to compress air into the tubing. If you believe that the sound or vibration is causing some grief to fish in the aquariums you can try the following:

1. Put pump onto a dampening platform, like a cloth bag of sand. The sand will dampen the vibrations of the pump.
2. Put a dampening bag on top of the plastic tubing to reduce the vibration transmission emitted by the pump through the hoses.
3. Reduce the contact points of the hoses with the aquarium as much as possible.
4. Use a low power setting on the pump. Often the higher volume levels create backflow resistance which cause the pump to vibrate.
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Air stones and the noise they make Empty Re: Air stones and the noise they make

Post by Sandman1969 on Mon Jul 27, 2020 12:24 pm

I am talking about the stone itself though. The hose only touches maybe an 8th of a centimetre of the top of the tank as the hose comes out and the pump was above the water level.

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Air stones and the noise they make Empty Re: Air stones and the noise they make

Post by alexmtl on Thu Jul 30, 2020 11:01 am

Thinking more about this question fish do not hear as humans do. They have lateral lines which sense vibration and movement. Some fish have developed whiskers and appendages for smell and even some, electricity. There is some controversy over the vibrations caused by motor boats and large ships, and the "noise" from sonar in disrupting marine life.

My guess is that if the fish are not in distress there should not be a concern. If they are breeding it is a good sign that the airstone is not disturbing them.
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