Anybody know what this is on RT's shell?

[HotdogKnight]

I've had Vince about two weeks now, and he's had this white mark on his shell since I got him. At first I didn't care/notice, I thought it would wash off. It looks like paint or something that should be able to chip off but it's stuck there no matter how often I soak him, it doesn't look like bad news as he acts perfectly fine. It's just a bit strange as it's such a bright white it doesn't look natural to his shell.
The only thing I can think is that he knocked it on something in his last home?

 

[wellington]

Hmmm, I was thinking the same, that he nicked it.

 

[Yvonne G]

It might be an identification mark. Some breeders mark the babies to tell them apart. I'll bet you can scrape it off with your fingernail.

 

[HotdogKnight]

I tried to when I soaked him earlier but his shell is quite soft (he's only young), but that may have been because of the soak. D'you reckon I should try now he's dry?

 

[smarch]

I'd think with the ID mark as well, it looks almost too bright to be damage, especially being so small, and if it was damage I can imagine even if not deep damage you'd be able to feel a little divet in the area.

 

[dmmj]

Collection mark? Suffered while penned with dozens of others during collection?

 

[HotdogKnight]

Collection mark? Suffered while penned with dozens of others during collection?

What do you mean collection? He's CB but I still think it's a knock of some kind.

Do they grow out?

 

[smarch]

What do you mean collection? He's CB but I still think it's a knock of some kind.

Do they grow out?

If it is a mark from knocking something it wont grow out entirely but it will get significantly less noticeable as his shell grows.

 

[Yellow Turtle01]

It really doesn't look a like a nick, though! Did you try after he dried?

Collection mark? Suffered while penned with dozens of others during collection?

PS he's not a WC