Bring powerful 3-stage filtration and circulation to hard-to-filter places like aquariums, terrariums and turtle tanks with the Fluval U Series Underwater Filter. This completely submersible filter features a unique 3-way flow control spray bar that allows you to create water movement anywhere you need it. Efficient Fluval design uses a handy flip-top to make media changing simple and fast. For more info on Internal or Submersible Filtration, please see Internal Aquarium Filter Basics.
It makes my 20% weekly water changes so easy. My 50 gal indoor goldfish pond water qualty is alway ideal. It so easy to open and clean. It all most cleans itself.
great filter 8/27/2013
this works really well. I was a bit skeptical at first but it filters well, really moves the water (cichlid tank) and the venturi really stirs up the surface for max gas exchange. could be the solo filter in a low bio-load tank or a second helper filter which is how I use it.
good product 5/20/2013
i have it in my 55gal tank as a extra help hand to keep my tank clean. and it works great.