How long to "seed" new filter in established tank?

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CraigMac

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Dec 13, 2011
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M setting up a QT tank. My plan is to run the filter for this tank in my main tank to get it seeded. Then, I can simply fill the qt tank, move the filter over and be good to go. My question is how long will it take this extra filter to run in my established main tank until its seeded and good to go?

Thanks.
 
I was going to do that but the media in my main is the cotton/charcoal combo and the plastic that it's attached to is too big to fit I the 2nd filter. So I thought if I set up the 2nd filter wit it's own media for a bit that would work too?
 
I don't use that kind of filter anymore so I didn't even think of that. You'd probably need to run it for about a week.
 
Cool, that's what I was going to do, set it up today and let it run in my main tank until next weekend. Then next weekend I was going to setup the qt tan and move the filter over. That should work then?

Thanks!
 
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