Not even sure what to search for..

[clifg]

Anybody seen anything like this before?

 

[JGT]

Looks like it could be a Flatworm and a cucumber.

 

[SHNICI]

It look like you have sea hair and sea cucumber (on the right not sure but look like animal), the brown one look like sea cucumber, that you have to search in google images

 

[KJ]

Anybody seen anything like this before?

Medusa worm (Cucumber)