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  • Results 1 to 3 of 3

    Thread: Koi laying over, then spinning

    1. #1
      DMon707 is offline Junior Member
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      Koi laying over, then spinning

      I've had this showa for 15 years and he's never been sick before. No new fish in the pond in ten years. All other fish in the pond acting normally. Just did monthly sand filter cleaning and added new water. Within 24 hours, fish is laying over. I netted him and examined his body. No abnormalities.

      Hours later fish is actively spinning with nose to the bottom of the pond. Jerking as if epileptic. Later observed laying over again, sometimes at the surface, sometimes at the bottom. Then observed spinning again furiously. Fish laying over at surface few hours ago, examined and found markedly weaker compared to previous exam. Seemingly exhausted from frantic spinning and jerking. Diagnosis? Neurological?

    2. #2
      RichToyBox's Avatar
      RichToyBox is offline Administrator ~
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      A few questions? We always like to start with water quality numbers, preferably from liquid drop tests to assure that it is not a water quality issue. The numbers we like to see are for ammonia, nitrite, nitrate, pH, KH, and temperature. Also the size of the pond can be beneficial info.

      How soon after the filter was backwashed and cleaned did the actions begin? Was there any smell of rotten eggs with the cleaning of the filter?

      "Our goal is to assist with emergency and Koi health issues, as well as educate on best practices. Please help us gain a clear picture by giving the original poster time to answer our questions before offering opinions and suggested treatments."

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    3. #3
      DMon707 is offline Junior Member
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      Thank you, Rich. There were no abnormalities in the water, ph, filter. Other fish are all fine, but fin man passed away in my freezer after it became clear to me that a neurological issue had driven him to a semi-conscious dazed state, weakened after three days of alternating exertion and exhaustion. Necropsy showed no abnormalities in skin, eyes, gills or mouth. It's a 520 gallon pond, now with four fish instead of five. They don't miss him, but as usual, a sick fish gets visited, one by one, by the others.

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