Worm or kind of a starfish?

[emrekaran]

Its brownish tentacles has white ring-like shapes.
Any idea?

 

[Zer0]

Those are the arms of a brittle sea star. Good guy.

Also, holy bubble algae Batman!

 

[Reeferadicto]

 

[emrekaran]

Those are the arms of a brittle sea star. Good guy.

Also, holy bubble algae Batman!

Thank you, it is nice to hear that he is an ally It was a little scary to spot him after suffering from flatworm