Air pump question, please help

[khanhnguyen99]

Hi,
What type (looking for quiet one) of air pump is good for 33GL ?
Thank you very much for your advice.

[Glyce]

I use tetra whisper pumps, they work great and not to noisy.

[OttawaFolkFestivum]

As stated, Tetra Whisper (gets a lot of recommendations on the net). I own a smaller one, and it's fine but I don't run it since I got plants.

You can try the foam pillow trick, or suspending the pump to further reduce sound.

Of course bubbles themselves can make quite a bit of sound.