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  1. #1

    Lowest Temp for FMG to treat for Costia?

    I have always followed Duncans guidance to only use FMG when treating for Costia on my own pond, but I have the benefit of being heated.

    I have a friend who's currently at 8 degrees but found Costia during scrapes and some of the fish are not in a good way. (Redness kicking in and very lethargic).

    Not wanting to salt as looking at 3900 gallons.

    What is the lowest temperature that people have successfully used FMG without bad consequences?

    Thanks in advance.



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  3. #2
    Senior Member Rank = Grand Champion samp09's Avatar
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    I was talking to the guys in koi logic about this last time I visited and they said a consistent 10 degrees at least so may be worth waiting until sunday as no doubt with the weather due it will be over that by then.

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  5. #3
    Lol, that is exactly what I have suggested.

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    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Quote Originally Posted by schmike1976 View Post
    Lol, that is exactly what I have suggested.
    And a good suggestion. But if there to bad and on the verge of dieing. I would treat now. As it can be a fast killer costia. It acts more slowly in colder weather.
    I copied and pasted this over from nt labs

    : What is the minimum water temperature I can use a treatment?
    A:*The minimum "effective" water temperature when applying a treatment/medicine is 10 degrees Celsius. At lower temperatures, everything happens more slowly. Below this temperature treatments may be less effective. Please note that ALL fish keepers have a duty of care to the fish and it may be necessary to treat anyway.

    Fred

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    Fully Agree and will share it with him. Many Thanks.

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    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Quote Originally Posted by schmike1976 View Post
    Fully Agree and will share it with him. Many Thanks.
    Anytime mate. Good of you to look out for
    Him. Respect to you for that mate

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    Senior Member Rank = Hassai arceye's Avatar
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    Don't know if it helps but I've been treating whitespot with FMG in my unheated pond for the last three weeks, started off around 9 degrees but things chilled off again part way through and temps went down as low as 6 celsius for a few days.
    Not Ideal by far but no adverse reactions on the fish I'm pleased to say. I didn't have any choice but to treat really but my main worry would be effectiveness of treatment at lower temperature. I've just gone for an extra fourth and hopefully final dose as the temps are getting better and I'm hoping that will catch any straggling parasites that haven't completed their lifecycle.

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    Extreme Koi Member Rank = Hassai davec's Avatar
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    Lowest Temp for FMG to treat for Costia?

    Kusuri do some stuff acriflavine and malachite pre mix I’ve heard very good for costia I wouldn’t personally use formalin below 13 degrees that’s just me though others may have a different opinion


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    Senior Member Rank = Rokusai RipleyRich's Avatar
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    Chloramine T ?

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    Senior Member Rank = Adult Champion Mikeh83's Avatar
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    Lowest Temp for FMG to treat for Costia?

    Quote Originally Posted by RipleyRich View Post
    Chloramine T ?
    I believe this is to treat bacterial diseases and Costia as well as being used as a pre treatment for other parasites treatments as it helps to strip the mucus before treatment for flukes.

    My understanding is that this should not be used below 12.5 c so has a higher temperature requirement to FMG

    This thread is pretty old now, as temps have raised I would be surprised if anyone in uk was below 10 now.

    I’m currently holding 15 over night

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    Last edited by Mikeh83; 11-04-2020 at 09:27 AM.

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    Extreme Koi Member Rank = Gosai sammy66's Avatar
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    Hi, sorry to say i done FMG 4 or 5 weeks back and was a waste of time . So i used pp 10 days ago and all is clear now . For me pp done it at half the cost first time .

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  21. #12
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Quote Originally Posted by sammy66 View Post
    Hi, sorry to say i done FMG 4 or 5 weeks back and was a waste of time . So i used pp 10 days ago and all is clear now . For me pp done it at half the cost first time .
    It was maybe to cold then lol for fmg

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    Extreme Koi Member Rank = Gosai sammy66's Avatar
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    In your pond maybe mine been at 17 / 18 all winter .

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    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Quote Originally Posted by sammy66 View Post
    In your pond maybe mine been at 17 / 18 all winter .
    Lucky you.

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