ID please

[Vincent100]

Just found this critter in my tank
Not got a clue what it is or if I should be pulling it out

 

[GHsaltie]

Chiton, good guy!

 

[Vincent100]

Thanks GH was about to start hunting it down lol

 

[GHsaltie]

http://www.lionfishlair.com/hitchhikers-guide/
My go-to for critter ID. Maybe it will help you for the next alien.

 

[Salty1962]

Looks like a flat worm. Is it hard or soft?

 

[Tahoe61]

It's a Chiton I am pretty sure, you can see the plates.