Fluval U4 Underwater Filter Foam Pad

I use the U4 along with Fluval's hangon tank filter in a 55g for water turtles. They together keep the tank ok and cheaper right now than the FX I want. But this is short term solution and they filters are at opposite ends of tank to push together dirty water.

SO while this works, I wouldn't recommend others do it if they can afford the FX series for water turtles. This is best for fish, and haven't had any problems with my feeder fish getting into this filter.

*Change out only one side(there are 2) at a time to keep the good biological bacteria.

Replacement for old foam pads that lasted a couple years. I have had the fluvall filter in my turtle tank for several years and this is the first replacement of this item, would highly recommend.

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I use this item on my 40 gl turtle tank.works great. Turtles are messier than fish and this helps keep water clear.

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I have a turtle, three goldfish and two plecos and Fluval has maintained our 75 gallon tank wonderfully. Definatly recommend.

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We have 4 turtles in two 55 gallon tanks. Turtles of course make bigger messes than fish. But with just cleaning the foam pad every week, the water is still crystal clear!