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  • Results 1 to 3 of 3

    Thread: Formaldehyde at 40 %

    1. #1
      TaishoSanshoku is offline Member
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      Formaldehyde at 40 %

      Hello, I would need the dose of formaldehyde and how to apply it, since in my country, there are no products that you handle already made by a manufacturer, and the only solution I have is to go to a chemical laboratory and buy the drug made by them without any commercial name, what I get is formaldehyde at 40 %
      My pond is 8000 liters, thank you very much.

    2. #2
      SimonW is online now Senior Member
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      Quote Originally Posted by TaishoSanshoku View Post
      Hello, I would need the dose of formaldehyde and how to apply it, since in my country, there are no products that you handle already made by a manufacturer, and the only solution I have is to go to a chemical laboratory and buy the drug made by them without any commercial name, what I get is formaldehyde at 40 %
      My pond is 8000 liters, thank you very much.
      I would recommend malachite green together with formaldehyde. It is not only more effective against the parasites but also reduces formaldehyde usage by several times and makes it much less toxic to the fish.

    3. #3
      coolwon is offline Senior Member
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      Mix 3.5 grams of Malchite green with 1 liter of formalin for treating parsites.

      Dosage is 20 mls of the mixture treats 1000 liters of pond water.

      Repeat dosage after 4 days.

      Switch off your UV.

      Your filters need not be bypassed.
      Find more about Weather in Durban, ZA

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