How loud are sumps?

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Aquarium Advice Apprentice
Jul 16, 2004
I'm planning on building one, but if it sounds like a waterfall then im gonna just buy another silent fluval 404 canister filter.
You have 3 places where water has to "fall". There might be a way to make a silent one, but I'm not aware of it.

I personally find the sound comforting (and I hate cleaning a canister)
well the sound of water falling is really nice to hear. that is the only sound my makes. other then the fan from the light and the pump running but they are not that loud.
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