On my 30 gallon tank, I've had this same filter for over seven years. It still runs quietly and cleans up nicely. Tetra whisper filter is a good, quality buy.

Pros: Another Tetra Winner!

Cons: none

it keeps your fish from doing the back stroke and it helps keep the tank clean

Pros: cool

Cons: very quiet

I HAVE ONE OF THESE ON MY 55G. AQUARIUM AND IT WORKS VERY WELL. I RECOMMEND THIS TO EVERYONE.

Pros: WORKS GREAT

Cons: NONE

I tried several brands of filters. Really like this one. Runs very quiet and is effective.

Pros: Very quiet

Cons: none