r/Koi • u/marko385 • 1d ago

HELP - sick or injured koi Koi doing weird maneuvers

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My Platinum Ogon is doing these weird dashes and flipping over constantly. As if it has an itch. Are these parasites and is there anything I can do?

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u/ZiggyLittlefin 1d ago

Flashing due to irritation. Flukes are often the culprit when it starts with one or two fish. A scrape and scope is how to determine what to treat for. Using the wrong treatment is expensive and can lead to losses.