Help identify this pest !!!

[saltlife97]

These little guys have been starting to show up in my tank .. I don’t know if there coral eating slugs or nudibranchs please help me identify and how to get rid of these guys
Thanks ps they are tiny ( size of the tip of a pen)

 

[ScottR]

Elysia sp. Caulerpa eating sea slug.

 

[ScottR]

They eat macro algae. Not sure what types but caulerpa at least. I wouldn’t worry about them.

 

[Soren]

It appears to be some species of Elysia sea slug.