In article . com,
says...
The noise of a filter may be a problem. Any
major problems not using a filter. I'm going to use a air stone.


Get a submerged filter. I have a Duetto in a 10 gallon tank and it's
absolutely noiseless.

And the airpumps I've seen are noisier than even a hang on the back
filter.

--
Homo sapiens is a goal, not a description