Fish Dying

Discussion in 'Illness and Disease' started by CherylD, Oct 5, 2017.

  1. CherylD

    audioenvy

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    Is the one you added in April still alive?
     
    audioenvy, Nov 2, 2017
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  2. CherylD

    CherylD

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    Yes that is one that is still alive. It's weird all of my butterfly died first, now the standard koi are dying. They do not have parasites, just very frustrating nothing has worked. All my problems started it seems when I found a baby coon in my backyard, not sure if it had been in pond or not. Water has been changed enough to have been a complete change.
     
    CherylD, Nov 2, 2017
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  3. CherylD

    j.w I Love my Goldies

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    I don't know of a disease that a raccoon can transmit to fish. I know they can carry roundworms, rabies and leptospirosis but don't think fish can get these. Unless the raccoon had walked in something and went into your pond w/some kind of poison on its fur. Sounds like it all points to that last fish you put in there. Unless your older fish somehow got a disease first and the new fish will be the last to get symptoms and die. It is a mystery for sure!
     
    j.w, Nov 2, 2017
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  4. CherylD

    Meyer Jordan Tadpole

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    Was this a breeder/hatchery or a retail vendor? This fish could very well be asymptomatic if it is indeed a carrier. This would not show up in quarantine. No way to know for sure exactly what the pathogen may be without having a necropsy performed and these can get costly.
    I agree with @j.w in that it is highly unlikely that the source of this problem was the baby coon.
     
    Meyer Jordan, Nov 2, 2017
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  5. CherylD

    audioenvy

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    It sounds extremely frustrating, for sure. When you say they do not have parasites I'm assuming you mean no visible ulcers or whatnot--but did you by any chance actually send a tissue sample or scrape/scope to a lab?

    I sympathize with the feeling of helplessness. It would be horrible to watch the fish die one at a time like that without any warning signs or symptoms.
     
    audioenvy, Nov 2, 2017
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  6. CherylD

    Meyer Jordan Tadpole

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    Look at the photos posted earlier in this thread. The fish are most definitely ulcerated.
     
    Meyer Jordan, Nov 2, 2017
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  7. CherylD

    audioenvy

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    Oh wow yes I see that now. The ulcers on the orange fish are especially pronounced and the other one has numerous affected areas.

    Cheryl, once a fish gets ulcers that bad you generally can't just treat the pond water to heal the fish. The fish needs to be removed, sedated so that the affected scales can be removed, and treated topically or via injection.

    There are any number of reasons the fish could have become infected but those two photos lead me to believe it was several months ago. It may or may not have been caused by the fish added in April but given that you have two fish left I would recommend inspecting them closely for signs of ulcers. If they have ulcers approaching the severity of the two photos you posted earlier you may want to consider humanely terminating them and starting over--unless you want to investigate using MS-222 to sedate the fish and something like peroxide/iodine/tricide-neo topical treatment.
     
    audioenvy, Nov 2, 2017
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