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Old 10-17-2005, 08:13 PM   #1
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When changing the filter media...

...is it a good idea to leave the old media in the tank to allow the new media to grow the bacteria colonies? I haven't changed it in months and have been rinsing and "cleaning" it in the newly removed water as I do changes, but it's getting so very little water will pass through the media, so I think it's time...
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Old 10-17-2005, 08:17 PM   #2
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Yes, leave the old media in for a week or two. Excellent idea, you must be doing your reading.
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Old 10-17-2005, 08:35 PM   #3
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What kind of filter do you have? If it is one with a BIO-Wheel then you don't really need to worry about losing bacteria colonies when you change the filter carrtridge. If your filter has several types of media in it (i.e. sponge and biological material) then changing one won't hurt because the other will still provide a bacterial growth medium.
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Old 10-17-2005, 08:44 PM   #4
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Its a really cheap Whisper 10, so it all comes out when changing.

It seems to do the job though (10 gallon community tank).
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Old 10-17-2005, 10:58 PM   #5
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does the whisper 10 not have the secondary sponge? My old whisper 40 came with the "bio-bag" and a black sponge that went in just after that. If you alternate their changing then you should do fine.
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Old 10-17-2005, 11:05 PM   #6
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No, it just has the bio bag, but come to think of it, I think one can buy a sponge to put into the filter.
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Old 10-18-2005, 01:12 AM   #7
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You my be able place a small layer of ceramic rings and trim a sponge on top. then changing out the sponge every so often won't really do much
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