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Thread: co2 testing

  1. #1
    Just an Egg
    Join Date
    Feb 2008
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    Wollongong
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    co2 testing

    Hi

    I current am using a liquid test kit for co2 testing.
    I have found these other methods sold by various fish shops.
    Has anyone had any experience with them?
    Dupla co2 permanent test &
    Red sea co2 indicator &
    A co2 drop test kit (from international ebay)

    Regards,

  2. #2
    Tiny Fry
    Join Date
    Nov 2007
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    Sydney, Australia
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    permanent C02 tests are useless at a low GH. I can't remember the exact details but I abandoned mine long ago... I think ILLUSN had the same experience...

    R

  3. #3
    Just an Egg
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    How do i get any idea what my co2 is then??

  4. #4
    Moderator
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    Jan 2007
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    Penrith NSW
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    it doesnt matter what your co2 is as long as your plants do well, and your fish are fine the co2 is perfect, if the plants dont do so well and the fish are fine up it a little, if the fish are near the surface gasping, back it off a bit.

    Dont try to over analyse and over controle things, just make small changes a little at a time over a few weeks and you'll get a "Balance" thats perfect for your tank.

  5. #5
    Just an Egg
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    Yeah is suppose your right.
    Cheers

  6. #6
    Just an Egg
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    Sep 2006
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    Sydney, Australia
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    The ratio between your KH and PH is the only real way to get it right. Try this link. http://www.csd.net/~cgadd/aqua/art_plant_co2chart.htm

    The article is the bible of CO2 in the aquarium. Whilst i agree that the look of the plants is a good guide, they will always look better with the right balance....

  7. #7
    Just an Egg
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    I was told that that is an inaccurate way of measuring due to other influences.

  8. #8
    Medium Discus
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    Nov 2005
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    london
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    the chart is accurate if only carbonate and co2 are the only influences on pH , so you must use , water of a known carbonate hardness... ie prepared by r/o water and only carbonate added, and you need to prevent other acids entering this water , so isolation via an air bubble is used

    the drop checker ..

    andrew

  9. #9
    Larvae peppermintman's Avatar
    Join Date
    Oct 2007
    Location
    Brissie
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    118
    I had a look at that site and Thanks.
    Peppermints are the best catfish

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