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Old 04-25-2011, 01:25 PM   #1
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Question Canister Filter Foam

I rinse out the corse filter foam when I do my monthly canister maintenance, but I'm getting conflicting information about how often to replace it. Some websites say to replace it every 9 weeks, others say every 9 months. I'm assuming one of the two is just a typo/mixup since they both contain the number 9. (I've got a Marineland C-360).
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Old 04-25-2011, 01:28 PM   #2
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Replace it when it falls apart... no sooner or you're wasting money.
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Old 04-25-2011, 01:30 PM   #3
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Thanks! Roughly how long will that be?
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Old 04-25-2011, 01:31 PM   #4
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I've had the sponges in my fluvals for ~2 years now and they look brand new... except the color.
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Old 04-25-2011, 01:51 PM   #5
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Quote:
Originally Posted by mfdrookie516
Replace it when it falls apart... no sooner or you're wasting money.
+1

That includes the biomedia (biomass) that mfg will tell you to replace every 3 months, this should never be replaced since your good bacteria live/breed in it. Just rinse it out in old tank water during a PWC (same with sponges) once a month (+/-).

The only exception is carbon, if you use it (I don't unless I'm removing meds). It should be swapped out every 2 weeks or so because it can cause problems if it's left in too long.
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Old 04-25-2011, 03:31 PM   #6
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Ditto. I still have the original foam I got with my FX5, which I got when they first came out. I have others even older and still have not replaced the foam.
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