[jumanji]

Hi we are pretty new to keeping Koi we have just upgraded our pond so we brought several small koi in august to stock the pond up a bit. One of the koi I could not identify at all so any suggestions would be greatfully recieved. He started off as pale blue with dark blue markings gradually over the last few weeks it has totally changed and develloped rusty yellow patches all over it. It is feeding and swimming totally normal. Its head has totally changed colour now as well so we decided to get it out to take a closer look. It has a jelly like white lump on its mouth and a few on the top of its head. I dont know if the colour change and the lumps are realated or is the latter carp pox. Could any one help thanks.
I have tested the water on a regular basis and everything is spot on.

I have got some more pics but dont know how to shrink them small enough

[worthy]

nothing to worrie about just carp pox they tend to get it while they are young not very nice to look at but compleatly harmless and nothing can be done its one of those thing he will grow out of hope this helps

[jumanji]

ok thanks i thought it might be that but is the colour change normal as he used to be all blue and now has these rusty yellow/orange patches all over him

[koimaster]

this is secondery hi the fish you have is probley from a showa,sanke spawning

[jumanji]

ok thanks for your help. I just noticed this morning that on one of my larger fish shiro utsuri has a large yellow round patch on his side making the scales look raised it does look a bit waxy but is def yellow . could this also be carp pox ?