Water Changes

Discussion in 'Water Parameters and Additives' started by MerlinT, 23 May 2013.

  1. MerlinT

    MerlinT

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    Hi Guys
    I have a 165Lt tank minus volume of rock ect gives me 150Lt of actual water. I would just like to know the following:

    a) Do I do 50Lt water change once a month or
    b) Do 25Lt water change twice a month?

    My thinking is that with a 50Lt change, after two weeks the whole 50Lt's has started to get dirty whereas
    with 25Lt water change twice a week there will at least be 25Lt clean fresh water available.

    Is this way of thinking logical or not?

    Thanks
    M
     
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  3. Visser

    Visser MASA Contributor

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    Works out the same....
    I would rather do 20l waterchanges every week if your planning on going that route. Prevents sudden changes & gives you about 50% waterchange a month...
     
  4. RiaanP

    RiaanP Moderator

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    or 20L every week...
    It is just one drum :whistling:
     
  5. Nemos Janitor

    Nemos Janitor

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    Depends what you want to achieve by doing the water changes.
     
  6. RiaanP

    RiaanP Moderator

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    snap
     
  7. Visser

    Visser MASA Contributor

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    LOL, exactly my thinking @RiaanP, but beat you to it...
     
    Last edited by a moderator: 26 Nov 2015
  8. MerlinT

    MerlinT Thread Starter

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    Hoping to keep PO4 NO3 down without having to add meds time. I think my neighbour overfed when I was away on holiday so those parameters are a little high.

    M
     
  9. brentv

    brentv

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    Ooh another water change thread!!
    This is gonna be interesting:whistling:
     
  10. Dorry

    Dorry dorry

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    Tagging :whistling: can be very interesting to hear all the reply's.
     
  11. Nemos Janitor

    Nemos Janitor

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    This is where I miss Mrs "B" most times.
    Belinda has all the threads and links in a DB and saves many a retyped post.

    But @MerlinT what were the NO3 and PO4 before and after the tank sitter?
    If it is a spike you want to contend with then a big WC is appropriate. If it is a long term degradation then small WC are recommended along with remedy of the cause. WC is no fix unless you are on to the 95% fix guy strategy.
     
    Last edited by a moderator: 26 Nov 2015
  12. the fish

    the fish

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    20ltrs a week. that is all that is needed
     
  13. MerlinT

    MerlinT Thread Starter

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    But @MerlinT what were the NO3 and PO4 before and after the tank sitter?
    If it is a spike you want to contend with then a big WC is appropriate. If it is a long term degradation then small WC are recommended along with remedy of the cause. WC is no fix unless you are on to the 95% fix guy strategy.[/QUOTE]

    NO3 was 0.03
    PO4 was 0.05ppm

    Now
    NO3 is .50
    PO4 is 5ppm or something like that

    M
     
    Last edited by a moderator: 26 Nov 2015
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