Is this a flatworm?

[matt.moo4]

Just found a few of these on my rocks, they are red and have two stalks coming from the head, sorry for the bad photos, are these flatworms? They aren't flat, like red planaria and the two stalks coming from the head makes me suspect they're something else

 

[ChiCity]

nudi
(could be an elysia slug, but gut says nudibranch)

i would remove it if it is indeed a nudi….
(most are predators of something specific)

 

[matt.moo4]

nudi

Should I be worried about them? Will they bother corals

 

[matt.moo4]

nudi
(could be an elysia slug, but gut says nudibranch)

i would remove it if it is indeed a nudi….
(most are predators of something specific)

Do you think they could be vayssierea felis?