i happen to have a regular filter, a hob, marineland biowheel and those things make ridiculously loud noises, and you have to replace the media every so often.
i have also bought an aquaclear 30 and it was too weak. although both biowheel and aquaclear were rated for 30, the biowheel seemed to pump out more water.
would using an air pump be loud? i have this tank in my bedroom.
oh, and thanks for your posts