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  1. #1

    Question Apiosoma Treatment

    We've just done a scrape / water check under the microscope and we're fairly certain that we've identified Apiosoma...

    ...problem is, we're struggling to find anything that's supposed to treat it. Aside from an identification video here there doesn't seem to be any other mention of it.

    Anyone have any suggestions?



  2. #2
    Senior Member Rank = Grand Champion RS2OOO's Avatar
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    Don't think I've ever known anyone to have found these on their koi before.

    I think they are quite big parasites, bigger then Chilodonella, but only cause fish problems when they're in big numbers in the gills.

    They are similar in shape to Chilodonella and even paramecium so I wonder if you've possibly mistaken identity.

    Either way, I'm pretty sure (but worth getting confirmed to be 100% sure) the treatment is the same whether it's Apiosoma or Chilodonella and that's FMG.

    Probably a dose on day 1 then another dose on day 7 to clean up any stragglers.

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    Senior Member Rank = Yonsai Koiz's Avatar
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    This caught my attention too, and even more so when I googled videos of Apiosoma! Is this what you have seen under your scope: https://www.youtube.com/watch?v=zQocEp3zktY

    If so, it looks very much like what I found on my Intex scrapes the other day: Folder 14.

    According to Blackwater Creek Koi Farms (who have a nice Freshwater Fish Parasites blog), "Apiosoma, formerly known as Glossatella, is another sedentary ciliate common on pond-reared fish. Apiosoma can cause disease if their numbers become excessive. The organism can be found on gills, skin, or fins. The vase-like shape and oral cilia are characteristic (Figure 7). Apiosoma can be controlled with one application of one of the treatments from Table 1" - those treatments being FMG or PP.

    Are your fish actually showing any signs of poor health or irritation? If not, I'm not sure I'd be worried about finding these.
    11,440L Raised Pond, BD, Oase ProfiClear, Bitron 55W, 2x10k Aquaforte Varios, Skimmer to Waterblade

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  6. #4
    Thanks for the replies. Some of the fish have seemed to be acting differently recently and I've noticed a bit of flashing.

    I took some pretty clear screenshots from the microscope and it's basically exactly those things, but my laptop is currently in the garage (and it's late) so I'll try and grab it in the morning. Definitely not Chilodonella or paramecium... it looks like a vase with a mouth / whiskers on the end.

    Will start an FMG treatment tomorrow and hopefully that'll help.

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  8. #5
    Senior Member Rank = Grand Champion RS2OOO's Avatar
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    Just read up on them, if you clear algae out of your pond and have a low bacterial count they should die off naturally.

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  10. #6
    Algae is a massive problem at the moment, so not surprising they're related.

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  12. #7
    Senior Member Rank = Yonsai Koiz's Avatar
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    Quote Originally Posted by RG1X View Post
    Algae is a massive problem at the moment, so not surprising they're related.
    I scraped my pond the other day and found some there also - even though I've got barely any growth on the walls or floor as it's only just started up again after the strip down. I wonder if these Apiosoma move onto fish when their populations get so high that they have 'over-colonised' the surfaces in the pond due to a lot of algae allowing their numbers to increase? Might be worth doing a scrape of the pond walls to see just how may you find on one slide. If you find a lot, then perhaps this theory holds water. I'd be interested in the results if you fancy giving it a go
    11,440L Raised Pond, BD, Oase ProfiClear, Bitron 55W, 2x10k Aquaforte Varios, Skimmer to Waterblade

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  14. #8
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Quote Originally Posted by Koiz View Post
    I scraped my pond the other day and found some there also - even though I've got barely any growth on the walls or floor as it's only just started up again after the strip down. I wonder if these Apiosoma move onto fish when their populations get so high that they have 'over-colonised' the surfaces in the pond due to a lot of algae allowing their numbers to increase? Might be worth doing a scrape of the pond walls to see just how may you find on one slide. If you find a lot, then perhaps this theory holds water. I'd be interested in the results if you fancy giving it a go
    if you don t have good eyesight they could look like flukes lol. very interesting. never seen them before,

  15. #9
    Unfortunately by the time I saw that post it would have been too late as I'd already treated with FMG. The fish seem much happier now though, so something was definitely going on.

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