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Thread: Potassium Permanganate dosage

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    Registered Member sophie68's Avatar
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    Question Potassium Permanganate dosage

    Hello all,

    I want to use PP (2ppm strength) for external parasites in my 80 gallons. I am going to go by weight. According to my calculations, I need to use 0.53 g of PP. I am calculating based on a volume of 70 gallon because my tank is not full and I have big pieces of driftwood in there. My question is: how much water do I need to dissolve my PP in? I am confused about that. Could not find that info anywhere....Also, can I mix PP with mineral water ? It's my first time using it.

    Thanks a lot!
    Sophie

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    Administrator pcsb23's Avatar
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    Default Re: Potassium Permanganate dosage

    Quote Originally Posted by sophie68 View Post
    Hello all,

    I want to use PP (2ppm strength) for external parasites in my 80 gallons. I am going to go by weight. According to my calculations, I need to use 0.53 g of PP. I am calculating based on a volume of 70 gallon because my tank is not full and I have big pieces of driftwood in there. My question is: how much water do I need to dissolve my PP in? I am confused about that. Could not find that info anywhere....Also, can I mix PP with mineral water ? It's my first time using it.

    Thanks a lot!
    Sophie
    That is the correct amount of PP for a 2ppm dose.

    You can mix the PP with mineral water (but why?). I use recently boiled water and dissolve the PP in a jug or small bowl then add it to the tank. I use about half a pint of water.

    It is likely that the treatment won't run for the recommended four hours minimum because the wood will "use" up the PP. It should remain purplish/pinkish for a full 4 hours.
    Paul

    Comfortably numb.

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    Registered Member sophie68's Avatar
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    Default Re: Potassium Permanganate dosage

    Hi Paul,

    Thanks for the reply. I am trying to figure out the equivalent of a pint in US gallon. I was also trying to clean the wood out. I was going to use it for 2 hours.

    Sophie

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    Administrator pcsb23's Avatar
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    Default Re: Potassium Permanganate dosage

    Quote Originally Posted by sophie68 View Post
    Hi Paul,

    Thanks for the reply. I am trying to figure out the equivalent of a pint in US gallon. I was also trying to clean the wood out. I was going to use it for 2 hours.

    Sophie
    Well in the UK there are 8 pints in a gallon, but our gallons are about 20% bigger than yours.... so basically a large cup (or mug) full of hot water to dissolve the crystals in will be fine.

    You really need to treat for a minimum of 4 hours.
    Paul

    Comfortably numb.

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    Registered Member sophie68's Avatar
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    Default Re: Potassium Permanganate dosage

    OK, thanks Paul!
    Sophie

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    Registered Member Moon's Avatar
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    Default Re: Potassium Permanganate dosage

    I make up a stock solution and keep it in a 1litre coke bottle. It is also usefull for steralizing nets and siphon tubes.

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    Registered Member seanyuki's Avatar
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    Default Re: Potassium Permanganate dosage

    Hi Sophie,

    Perhaps this may help


    http://www.metric-conversion-tables....sionvolume.htm



    Just to add some :

    to calculate ppm
    ppm = mg/liter

    1g = 1000mg
    1ppm = 1mg/1 liter of water

    to calculate liter of water in tank
    liter = long in cm x width(high) in cm x deep in cm / 1000
    3.785L = 1gallan

    to calculate %
    1g/1 liter water = 0.1% (For salt add 100g into 100liter of water will equal to 0.1% dosage)

    term :
    ppm = part per million

    To make it easy for potassium permanganate crystal form into pp solution.
    1g (1000mg) pp for 100ml of water = 1000ppm
    1ml of this pp water solution = 10ppm

    To make it 5ppm dosage : add 10ml into 20Litre of tank water or 50ml to 100L of water.



    Cheers
    Francis


    PS

    Remember to have Hydrogen peroxide (H2O2) in hand too
    Last edited by seanyuki; 07-07-2008 at 01:01 PM.

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    Registered Member sophie68's Avatar
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    Default Re: Potassium Permanganate dosage

    Hi, thanks for all the info. Does the water have to be warm or can you use cold water?

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    Registered Member phidelt85's Avatar
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    Default Re: Potassium Permanganate dosage

    Cold water should be fine but you will get a better dissolution of the PP in warmer water.
    ________________
    Jose

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