What is the noisiest part in your aquarium?

[Reef-Geek]

Please share you experience.

[reefwars]

right now the noisiest part of my aquarium is the sound of the bubbles in my vertex skimmer lol im hoping my doors will kill that too so im happy

[Aquattro]

Chiller. But just bought fans, so hopefully water in my Durso becomes the loudest part.

[Snappy]

Noisiest piece is my Hammerhead pump used for the closed loop.

[Myka]

The EuroReef RS-180 is the only audible sound coming from my tank. Maybe it's just drowning out the sound of everything else? Oh, the Tunze Osmolator is actually louder than anything else when it is topping up the water.

[Lampshade]

I answered Main Pump, but it's not even the pump itself, the cooling fan on the back of motor is the loudest. Pretty happy with how quiet everything is, once i've finished my stand should be near silent.

[Lance]

My Beckett skimmer is the noisiest with the Reeflo Barracuda a close second. Luckily the sump area is in a room where noise is not an issue.

[cale262]

Very much a toss up between the MH fans and the MP40's...

[outacontrol]

My mp10, the tank was silent before with the Koralia powerheads.

[Mrfish55]

Loudest part of my system would be the nagging sound I hear on a regular basis about how much time and money I spend on the tanks.