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

Quote:

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Originally Posted by sophie68

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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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.

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

Quote:

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Originally Posted by sophie68

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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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.

OK, thanks Paul!
Sophie

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

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

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

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