Guppy Trouble

[Sharkey G]

Hi all,

I'm noticing something really unusual - one of my guppies has gained a black head, basically from the top of its head and then it's running down about 3 / 4 down its small body.
I've no idea what this is.

Scale loss perhaps ?

Please throw your suggestions my way !

Cheers in advance, Grant.

 

[kittyuk]

http/community-2.webtv.net/CustomSigns/Blackhead/
Might be a blackheaded guppy

 

[Sharkey G]

Thanks for that, but I'm not sure it is, as it's only obtained it recently.
Wonder if this is possible ...