Internal Filters for 20 gallon long tanks

I've been using a Duetto 100 internal filter for several years now on my 20 gallon long tank, but I was wanting to get something with more flow or more biofilter capability. The Duetto is really 92 gph, so I bought a Fluval U2 rated at 105 gph.

So far I am not impressed with the flow rate on the Fluval U2. It definitely have more filter media than the Duetto, but I can't imagine the flow is any better than on my Duetto.

My PetSmart also has an Aqueon Quietflow 30 Internal Filter. It is rated from more like 145 gph which would be a nice increase, but the filter media looks to be on par with the Duetto and it's patented biogrid just looks like a bunch of smooth plastic bits that bacteria wouldn't find an easy purchase on. Plus, I've not heard of anyone using the internal version of Aqueon's Quietflow.

So, I'm going to try to put up a poll, but I'd also appreciate anyone's thoughts and experiences with any of these three filters. I'd always been happy with the Duetto, but succumbed to that desire for something "better".

Thanks,

Eric

Space in my room (that extra 2-4" away from the wall makes a difference) and I cannot sleep with the sound of ANY external filter. Internals are essentially silent...even more than canister filters.

Eric

My bedroom is 11'x11'...you can't have anything 6 feet away from the bed. I've had 30 years of experience with all brands of HOBs, and ACs were my favorite...but I just don't sleep well with any noise. If I could come over, I guarantee I'd hear that impeller spinning as a very, very, very quiet hum/buzz, which would keep me awake.

Then again, my wife yells at me all the time for having the TV way too quiet, so my hearing must be pretty good.

OK, who voted for Aqueon and why didn't they share their experiences!

Eric

Hey Ray...those are the HOB Aqueons, right? I'm hoping someone will have tried one of the internal Aqueons.

The Fluval U2 and Duetto 100 (turned to half flow rate) are both going on my tank this week...I want to ensure the bacteria have time to colonize the U2. I set the U2 on the middle, "gentle" sprayer bar mode which actually seems to have better flow than the top "aggressive" nozzle. Weird.

Eric