ID this critter Please

[leafer]

:help: I saw this thing this afternoon...Does anyone know what it is and if I should get rid of it...Thanks :notsure:

 

[leafer]

I guess I should post the pic

 

[schadiest1]

search here,
https://forums.saltwaterfish.com/t/163703/hitchhiker-identifications

 

[leafer]

Nothing there that resembles this guy...

 

[reefforbrains]

what are we looking for in the pic?

 

[leafer]

On the purple there is a little green guy...looks kinda like a potato bug...

 

[schadiest1]

I believe it's a chiton.

 

[leafer]

Here...

 

[tinysmajick]

Bristleworm of some kind, maybe?

 

[leafer]

yeah...it might be a chiton...it's only 3/16" long...it's hard to count the plates to see if there are 8...