Quietest HOB filter, and ? about Prime

My Penguin 350 is silent if I have it all cleaned out and the water level up. I've had other HOBs that were noisey, mainly whispers when I first started out. if you dont mind spending a little extra, have you considered getting a smaller eheim canister?

Prime reeks seriously. thats its only downside IMO. :barf::thud:
 
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