White spots on an Oranda wen (head growth) is normal during growth spurt.
Nothing to worry about
Okay good to know that, thanks. However Its not on his head, its on the top fin.
Agree with bettasngoldfish. It doesn't look like anything to worry about right now. It may be a sign you need to do more water changes. I have many indoor goldfish and you can go crazy if you look for spots. They seem to all have things pop up like this from time to time. Usually they go away as quickly as they appear. if you know your fish, you will know when it's sick. Clamping fins, bottom sitting, not eating; these are usually signs of a sick fish. I don't worry too much about the random white spot as long as everything else seems ok. Clean water fixes many things, so water changes are your best friend with goldfish.
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