Fluval U3 Underwater Filter Poly/Carbon

Pricey for what they are but they get the job done.

Replace these filters for my two tanks.

monthly aquarium maintenance

The Fluval U3 keeps my turtle clean and happy.

This system worked the very best for our yellow belly turtle in a 50gal tank. We went from a standard fish filter that simply would not keep the tank clean to using the Fluval system. The tank would stay clean and we went to 3 months between thorough cleanings.

I use these in my aqueon 75 filter, and they work great and are cheap~

Definitely a need if you own a Fluval U3 Filter.

Works as expect for crystal clear water.

Is what it Is...

My fish tank