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Robert Medina
> 3 dayThese fine filter pads clear up the tank exceptionally well. However, these pads significantly reduce the flow (and therefore suction) of your FX6 filter. I image the effect is more pronounced in the less powerful FX4. I would recommend these be added if you need to polish the tank or if you have two filters and one is dedicated to mechanical filtration.
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Walter
> 3 dayGreat replacement product
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Tech On the Mark
> 3 dayI read over and over that the other (white pads) clog too easily and the blue pads (these) work better for water clarity. I put these in my FX6 used for a turtle setup and the water has been crystal clear since the tank completed its cycle. I have never used the white pads, but I really see no reason to try them while these are working great. I did a full review and a detailed setup on the FX6 for my turtle setup you can read if you interested in setting one up for turtles. Overall I think these are excellent pads and I will continue to use them.
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Amy
> 3 dayIm sure these would work great in a fish tank, but I have 2 turtles in a 120gal aquarium and these make my filter clog within a week. The debris and gunk that the turtles make builds up on these pads like crazy and no water can go through.
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ez1079
> 3 dayGreat Product!
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Alexander Wolf
> 3 dayeasy to use, perfect fit in filter, effective
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Mike Morrow
> 3 dayperfect fit! Great product!
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FD Firefighter 121
> 3 dayWorks well in my Fuval FX canister
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Ksunder
> 3 dayWorks as advertised
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FD Firefighter 121
> 3 dayVery hard to find this filter even in Pet stores that sell the Fuval Fx canister. Really helps keep the water clear. I order them from Amazon. I am not into trying to clean the used filter too much so I like to use new filters every other full change of media and filter spones in the FuvalFx