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Thread: Fmg

  1. #1

    Fmg

    Should the colour remain in the water throughout the 7 day course of treatment? The uv is off and I added the correct dose, but the water is completely clear after less than 3 days. Is it still working?


    19,000 litres
    Nexus 320 with Dracodrum and submersible UV
    Blue Eco 320
    Eazy Pod on skimmer
    Dura+ 10kW Heat Pump
    15 koi

  2. #2
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Malachite will react if it’s sunny and degrades really quickly, mine normally hangs around a bit longer than 3 days but just because you can’t see it does t mean it’s not working
    13,243 gallons, Filtreau HF30’s K1 capacity of 1,400l, Bakki Shower, BHM and understanding wife

  3. #3
    That's what I wanted to know, thanks. Also, will the treatment have much effect on my ammonia test's accuracy?
    19,000 litres
    Nexus 320 with Dracodrum and submersible UV
    Blue Eco 320
    Eazy Pod on skimmer
    Dura+ 10kW Heat Pump
    15 koi

  4. #4
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Depends on the type of test, photometers will be affected but not drop tests at least I believe that to be the case
    13,243 gallons, Filtreau HF30’s K1 capacity of 1,400l, Bakki Shower, BHM and understanding wife

  5. #5
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    last time i dosed with FMG it was clear in a day,
    i can't remember now, it reacts with something in the pond but basically means it's still there and working.

    yeah don't test for ammonia with a hanna checker for a couple of days,
    it reacts with the formalin and gives a false sky high ammonia reading...

    the API drop test works fine...

  6. #6
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    It loses colour much faster in hard water.

    Sent from my Pixel 6a using Tapatalk

  7. #7
    That explains it. Not bragging, but there's no water harder than mine, almost fills the test tube before the colour changes on the kh test. Anyway, seems to be working, the fish are much happier, and should be fine after the second dose.
    19,000 litres
    Nexus 320 with Dracodrum and submersible UV
    Blue Eco 320
    Eazy Pod on skimmer
    Dura+ 10kW Heat Pump
    15 koi

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  9. #8
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Put fmg in on Sunday and planning on putting in second dose on Friday,when you putting in your second dose?

    Doing a big water change today which is the 3rd day and my colour went within a day.
    John

 

 

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