Is this a good thing or a bad thing?

[Gemma]

I noticed that the gray on my koi is turning blue, though I find the blue to be much nicer, I can't help but wondering if this change of color is a sign that something is wrong?
The fish is 3 1/2 yrs old, he's always been silver to dark gray no matter what I fed him.

 

[Meyer Jordan]

My hair begin changing color as I got older.

 

[sissy]

Mine also .As long as he looks healthy it must be in his breeding

 

[Ruben Miranda]

Hello
Yes as.they get older and bigger there could be a,good change.
But
Chck your water perimeters to be safe.

Your fish can tell you a lot when there is something wrong.

Ruben

 

[Dave 54]

Clours on koi like us change with age , the same as my hair is turning grey

Dave

 

[Ruben Miranda]

Yes my eyes are going bad I have grey hair and I am balding.
It is h...l growing old.

But I have 15 year old koi that are not losing there color so comparing a koi to a human then a 15 year old koi is just a teenager.
And should not be fading in color.

Ruben

 

[peter hillman]

Common for Comets, not sure about Koi.

 

[Gemma]

Thank you guys

 

[Usman]

oh no!