Goldfish • Possible tumour???

Hi everyone, I've had this goldfish in my tank for around 4-5 months and the base of one of his fins was a bit red when I first got him.

Over the past couple of weeks, this redness has started to grow larger and more pronounced. I'm worried that this is a tumour and that he could be suffering. He isn't using that fin much at all now; but still gets around just fine and has his normal appetite. His general behaviour hasn't changed either.

Please let me know what you think this could be - I have put a fungal/ parasite treatment in the water a couple of times so I don't think it's that. I also gave him a salt bath a week or so ago, but no improvement so far.

As of this morning, his scales are also "pineconing" in the same sort of way a fish with bloat might look.

I'm really starting to worry.

Thank you in advance.

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statistics: Posted by maisiechatfieldx — Nov 06, 2020

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