What is it.

[fishRus]

its been a year since I added anything to my tank and this guy shows up?
anyone know what this is? it’s about 3/8 of an inch

 

[Troylee]

Limpit or possible chinton but hard to tell from that photos..

 

[themcnertney]

Flat worm of sorts I think?. I'd pull it if I were you.