Silent Air Pump?

[ellena]

I'm using an old one in my cycling tank and it seems to have improved the bacterial growth a bit.
I love the look of the bubbles and would like to keep it in the tank once it's cycled.
However, my H has tinnitus and is struggling with the constant drone it gives off. It's not the pump, it's the air coming out of the stone.
Is there a way to keep it quiet?

 

[star4]

If its the stone that is the problem you could try and "air curtain" a rubber like tube that can be bent into shape, these are silent compared to the actual stones.

 

[ellena]

Oooh, I like the look of those! They seem quite cheap too, so def. worth a try-I'll look for one tomorrow. Thanks for the tip