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Hiding away in corners or under plants
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Not wanting to mix with other fish
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Hanging under the water surface and gulping for oxygen
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Flicking body against pots and/or the bottom of the pond
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Repeatedly jumping out of the water
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Jerking and flicking of the fins
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Swaying from side to side
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Losing colour or weight
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Slime may form on the body or fins
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Scales may be lifted resembling a fir cone
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Part of their fins and/or tail may be missing
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Bruising or swelling of the body
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Gill plates may appear pale and sticky
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Scales missing
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Fins folded back
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White dots that are apparent on their fins
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Fecal droppings are slimy and pale in colour
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Close to the surface and breathing rapidly
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Protruding eyes