Wondering what this hitchhiker is?

[captain spork]

I’m concerned it’s aiptasia but it’s tentacles have little “fingers” similar to pulsing xenia

 

[Uncle99]

I’m concerned it’s aiptasia but it’s tentacles have little “fingers” similar to pulsing xenia

What do they do when touched?

 

[vetteguy53081]

I’m concerned it’s aiptasia but it’s tentacles have little “fingers” similar to pulsing xenia

anthellia xenia

 

[Rocks reef]

@vetteguy53081 nailed it!
You can contain them by not letting the rock they are on near another rock.

 

[captain spork]

I’m concerned it’s aiptasia but it’s tentacles have little “fingers” similar to pulsing xenia

What do they do when touched?

They sort of got smaller and curled up