Best way to upgrade filter
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Best way to upgrade filter

This is a discussion on Best way to upgrade filter within the Freshwater and Tropical Fish forums, part of the Freshwater Fish and Aquariums category; --> I know there are already some threads on this, but I just want to be absolutely sure that I do this right. I would ...

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Best way to upgrade filter
Old 07-19-2014, 10:23 PM   #1
 
Best way to upgrade filter

I know there are already some threads on this, but I just want to be absolutely sure that I do this right. I would hate to make a mistake and have something go wrong. I have a 20 gallon tank with a topfin 20 filter on it. Now that I'm putting more fish into the tank, I want to upgrade the filter. I am planning on getting the AquaClear 50. What is the best way to switch them out? I was thinking of either running them both at the same time for a few weeks, or just shoving the old filter media into the new AquaClear 50 (I don't plan on using the carbon, so there should be some extra room in there). Is either option better than the other? Or maybe something else I didn't think of?

If the best solution is putting the old filter media into the new filter, do I do the black sponge and the white filter? Or just one of them? You can see the sponge and filter that come with the topfin here: http://tinyurl.com/ll7m52s. Another interesting thing to note is that my topfin is currently setup like picture one on that link, even though the claim is that picture 2 is correct. Not sure if I've been doing it wrong this whole time...

Any help is appreciated!
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Old 07-20-2014, 06:46 AM   #2
 
Run them both for two weeks and move the black sponge after that if you so please. For that extra room in there, dollar tree plastic pot scrubbers come in a 6 pack and are awesome media for BB growth! As far as you setting up the filter correctly? That's odd. Why would you want water that hasn't been filtered to go into your biomedia? I suspect they mixed up their photos.
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Old 07-20-2014, 08:11 AM   #3
 
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I would just take the old media an throw in the new one. Cuz BB grows EVERYWHERE in the tank, the filter houses a lot but there is still a lot in the tank. I have never had these filters. Does the topfin have a bio grid or a thing that holds the media in place? You could always do what I do and run both filters.
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Old 07-20-2014, 08:33 AM   #4
 
There isn't enough BB in the tank to support a cycle. The OP is trying to be cautious and the way I suggested is the most cautious way to go about it. Let us know what you decide!
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Old 07-20-2014, 04:10 PM   #5
 
Great thanks for the help! I will run them both for a while, and eventually take the first one out
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