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  1. #1

    Join Date
    Nov 2011

    Latest gifts & ribbons:

    Default starting a new 10 gal tank.

    1 Not allowed!
    Hi All,

    I have had a 20 gal. tank going for years. I now would like to add my 10 gal. It has been along time since I have cycled a tank.
    I am wondering if it is possible to take half my 20 gal tank water and put it in the 10 gal and add new water as needed. Then take the old filter from the 20 gal tank and put in 10 gal. Would this make it cycle quicker or is there something else I need to do? Also how long does the cycling take? Thanks.

  2. #2

    Join Date
    Jul 2008
    Timaru NewZealand [south island]

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    0 Not allowed!
    I take it your 20g tank is still running?

    If it is still running are you able to add a bit more bio medai to the filter?
    Set the new 10g up at the same time. Give it a couple of weeks, then swap out some of the new bio media and some of the old to the new filter.
    This will help add BB into your new system to help the cycle.

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