What is this? In reef tank

[MantisO_o]

Didn't know where to post this, forgive me. Okay i looked up and saw this long line on my tank glass. I thought the tank cracked then realized it was moving. Its a worm? a slug? ain't superman... what is it? Its a neon green to very light yellow thing. the front end seems to look like Nudibranch kinda, shrugs. Any help would be great.

Very sorry for the tank glass being dirty. Bad reef keeper i know ​

 

[iamwhatiam52]

Maybe some type of Nemertean worm?

Try the invert forum.

 

[MantisO_o]

Ah, i didn't think about the Invert forum. Thanks