Orange and Black Moor?

[PrincessEarring]

Hi! This is my first goldfish ever! I fell in love with him at the store, since he seemed so unique looking to me. I have never seen a goldfish this color, not that I have seen that many goldfish in my life. My question is, has anyone ever seen a black moor like this:

 

[THE V]

Your black moor has a very strong probability of turning completely gold as it gets older. Coloration in goldfish commonly changes.

 

[Somervell]

I agree (as usual) with The V. I had a moor that was completely black except for her eyelids. Now she is a completely orange telescope. Pretty fish, though. Some people have taken to calling them "Halloween Moors", but they really aren't. It is always fun to see what color they will end up as adults.

 

[Lupin]

Melanophore migration. In this case, the melanin cells die and replaced by xanthopores which is evident by the fact your black moor's black color is fading away and replaced by orange cells. The process is also called as apoptosis, cell suicide or cell death. Nothing wrong with that. It happens naturally and greatly influenced by genetics, food intake and environmental conditions.