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Thread: Dead Koi

  1. #1

    Dead Koi

    Hi I'm knew to this, please can you help?
    Bought a new koi, delivered by courier, after 7 days it died. After inspection, the koi had large growth inside which could be seen from the outside. It was a clear jelly like substance. I pulled it out with a toothpick. I would add a picture but dont know how to add picture. Please can someone advise



  2. #2
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Hi,

    Sorry to read that you've lost a Koi.

    Would need to see photos of this growth to understand what it might be and if that was the cause of death.

    To add photos click "Manage attachments" below the text box and select the photos from your PC / Lap top etc. If doing it from a mobile then use an app called Tapatalk which makes it easy to add photos.

    What were your water parameters leading up to, and at the time of death, main ones would be;

    Ammonia
    Nitrite
    PH
    And KH if you have that test.

    Do you have a microscope for checking parasites etc?

    How many other Koi do you have in the pond and what size/volume pond is it. Are all the other Koi well and healthy or do any of those have symptoms of anything?

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  4. #3
    Hi sorry for the late reply I'm not verry good at this please see the photoes I have about 30 koi all about the same size 4 to 6 inches and some gold fish I have lost 7 koi and thers 1 I'm not sure of at the moment at the time the problems started me
    PH 7.64 22.9C
    PHOSPHATE 2.0
    NITRITE .25
    AMONIA 0
    WIDE RANGE 7.0
    MY TDS WAS 182 BUT NOT SURE
    I have treated the pond with FLUKASOL and ARGUSOL and have now added salt to the pond the salt seemed to help
    I looked thrust a microscope and found FLUKES AND COSTIA ON THE SAME KOI AND ON ANOTHER ANCHOR WORM please see photoesthe COSTIA WERE TO FAST TO GET A PHOTO OF I HAV5 AROUND 3.7600 GALLONS


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  5. #4
    3.800 gallons

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  6. #5
    There are more but there on video
    Thank you all for your time

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  7. #6
    I have just tested the water
    WIDW RANGE6.5
    PH 7.5
    KH 6
    AMMONIA 0
    PHOSPHATE. 50
    NITRITE .25
    I have a plant bed and floating plants and water lilies
    Just done a scrape on 1 koi and found nothing
    But still verry concerned as 1 koi is not quite rite
    Thank you all for your time


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  8. #7
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Definitely flukes there, look like skin flukes.

    As you probably know salt won't touch flukes. If the flukasol fails to take them out then people have good success with fluke solve, but it ain't cheap.

    Some people will dose CT at a low dose of say 1gram per 1000 gallons for 2 or 3 days to wipe the mucus coating to allow fluke treatment to really penetrate.

    You'd have to check how these chemicals interact with salt.

    I'm no expert on TDS but that seems very low considering you have salt in the pond.

    No idea what the growth is, I've never seen anything like that before. Hard to see in the middle pic but was the growth attached to an internal organ or was it just attached to the skin?

    Not that the answer to that will give me any clues but someone else might have seen similar.



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  9. #8
    Hi thank you for your reply
    There was no salt on verry little in the water when I done the TDS test
    I would have done 1 yesterday but I droped it in the pond so drying out
    When I fired took the koi out I thought it was under the skin I sent the photoes to who I baught it off he said he not seen that before and said he would replace the koi but that's not the point if it infects other koi
    But anyway when I touched it with the toothpick there was no skin only the groth inside the koi it was just sitting in there when pulling it out it came out in pieces so not sure if it was attached to aney thing
    All the koi that died are from the same person but baught at different times I have I have more from the same person but seem ok at the moment all the koi died within to weeks
    Sorry for rabbiting on
    Thank you

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    I wouldn't have thought the lump is contagious in any way. But can never be sure.

    I'd probably be inclined to scrape a couple more just to make sure you've not got costia in there as obviously that's a serious killer.

    I scraped a few fish and found nothing, then managed to scrape one underneath the chin and back to the pecs and that slide was full of costia.

    Also found it in the dorsal area on one fish.

    I got the impression it exists in batches in certain places as opposed to being all over the fish.

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  13. #10
    Thank you
    I scraped the koi oll over used 3 slides I no sounds terrible but the koi was ok was verry carefull and I found nothing and there was verry little to scrape off no mucus
    I never salt the koi before but I think it was the best thing dont no if it's an acumilation of treatments but fingers crossed there ok at the moment I have a window and 1 koi just sits and floats tail up a bit so I'm hoping that will be ok as I dont no what to treat it with and I cant catch it its verry fast and the koi seems to be eating ok
    Thank you for taking the time to comment and advice
    Thank you

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