Black Spots on Koi

MagicSmokeAquarist

AC Members
Nov 14, 2020
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Yes, I know it's an ugly fish...

It was given to me as a gift, and I have had it in my pond for a year now, and I noticed some black spots on it. I dont know if this is a disease, parasite, mold, or just black patterns developing on it. I rubbed on the black spots to see if it was something like mold, but it seemed to be just part of the koi fish on the scales. Any idea what it could be?

IMG_3097.JPG
 
Yes, I know it's an ugly fish...

It was given to me as a gift, and I have had it in my pond for a year now, and I noticed some black spots on it. I dont know if this is a disease, parasite, mold, or just black patterns developing on it. I rubbed on the black spots to see if it was something like mold, but it seemed to be just part of the koi fish on the scales. Any idea what it could be?

View attachment 229234
Looks like pigment to me. Black spots can be fluke eggs, but those look too big to be that
 
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