55 Gallon Tank Butterfly koi question about its scales

[Whitey3159]

I've got a koi I've raised from 2.5 inches he is now 14.5inch. I saw white scales placed randomly on one side with one black otherwise its solid orange. Question is is this normal?
Al?

 

[Cue]

Are there still scales on the white areas? Did they ever loose scales previously in life? If they lost them earlier in life, growing in a different color is pretty common. Natural color variation is also normal.

Very pretty fish too

 

[JustAFishServant]

Most likely healed injury. Carp (goldfish, koi, etc) grow in white scales when the previous ones fell off or were pulled (like with Jikin Goldfish.)

Also, yes I'm that guy, but what size tank is this? Koi grow up to 3 feet (about 1 metre) long. They need very large ponds, the typical 'rule of thumb' being 250 gallons (about 950 litres) per koi.