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sydney asked in PetsFish · 1 month ago

What is this sore on my goldfish:(?

My baby oranda goldfish has a sore and I have looked up so many things but I can’t figure out what it is or how I can help treat it. I don’t know what to do but i don’t want him to be in pain or die or get any of my other fish sick :(

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  • 1 month ago

    Ulcer Disease

    Seen on koi and goldfish, it starts out as a red or white pimple and quickly widens into a large hole or ulcer. ... Anchorworms, fish lice, and flukes can all contribute to ulcer disease. Keeping your fish clear of these parasites is very important. Keep affected fish in salted water and feed medicated food

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