No worries man thanks for the inputShame, sorry buddy. I tried suspending the pump in the air also but that didn't improve anything for me either. I researched this a few months ago, Tetra claim their Whisper air pumps are the quietest available but many people have said that after 4-6 weeks they start getting louder. I have no experience with them sorry! None of my pumps are especially quiet but luckily they are mostly drowned out by the drone of all my fans![]()