Guppy Turning Gray/black Around Tail?

[Fc1700]

Behavior still seems normal, but noticed the discoloration a few days ago. Something to be concerned about?
Pics

p.s. - Can you also tell from the pics if this is male or female?

 

[TallTree01]

That's a male. Beautiful one too.
From what I can see he seems physically healthy. Maybe the color is changing as he grows?
Seems fine to me.
I love your guppy btw.

 

[Fc1700]

That's a male. Beautiful one too.

From what I can see he seems physically healthy. Maybe the color is changing as he grows?
Seems fine to me.

I love your guppy btw.

Thank you! Maybe Ill get a female and breed

Good to know he looks normal, I just googled it and saw something about "Columnaris" and wanted to make sure that wasn't the case.

 

[TallTree01]

Is he a specific tail/ color type?
I'm really liking the look of him. Might get some for me

 

[Fc1700]

Is he a specific tail/ color type?
I'm really liking the look of him. Might get some for me

All I know is he was a PetSmart Fancy Guppy haha. He just used to be more gold/yellow and less black.

 

[PrairieSunflower]

He might be a red tuxedo.

 

[Tartan-Guppy]

Yeah, Red Tuxedo (or Half Black)

 

[bluesword23516]

Chances are he is fine and this is his true coloration.