Bulging Goldfish Belly

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    Aimee2407 New Member Member

    My goldfish of about 18 months has a bulge in his belly, it's sticking out more on one side. He is swimming fine and eating fine also. He is in a 23 litre tank with one other older goldfish (who doesn't have this problem). I have changed some of the water and added stress coat. Can anyone help please or know what this problem is? Thanks Aimee
     

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    Aimee2407 New Member Member

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    mollybabes Well Known Member Member

    I have never kept goldfish, but I saw something like it on here before and that was a tumor.

    Don't get worried because I might have it wrong.

    I'll wait for someone else to give their expertise.