OK, I will not recommend either. Instead, the quietest pump I have ever owned is a German made SCHEGO.
Extremely quiet. Most places do not sell them so they are not well known. You can get them online here:
http://www.drsfostersmith.com/product/prod_Display.cfm?siteid=6&pCatId=3683
Extremely quiet. Most places do not sell them so they are not well known. You can get them online here:
http://www.drsfostersmith.com/product/prod_Display.cfm?siteid=6&pCatId=3683