Good or Bad?

[gtrider]

I found this translucent gastropod on my tank glass. Any ideas? Should i get rid of it?

 

[Crabs McJones]

Definitely a flatworm, as to the specific type I am unsure. @KJ may know

 

[ThunderGoose]

Why did you call it a gastropod? Is there a bit of shell on the far side? If so then it's a good hitchhiker (stomatella). Flatworms are not gastropods and may be a possibility based on the photo.

 

[KJ]

Remove them.

 

[Ewelina]

Sump it.