I'd suggest a canister filter for your tank or a pair of Emperor 400s.
I have an Aquaclear on one of my tanks. It is silent but I have found it not running on more than occasion, and it's fairly new. It has an adjustable flow that is controlled by moving the intake pipe left to right which seems a little problematic. If you do go with an Aquaclear, keep an eye on it.
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 3 Planted Tanks: 10g, 20g, and 29g
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