Hitchhikers Guide to the SeaGalaxy! ID help

[Mnmbrix]

Just noticed some little additions that I hadn’t seen before. Does anyone know what my little hitchhikers are and if they are dangerous? Thought maybe Asterina, not sure what the others are near my mushrooms

thanks in advance for any help!

 

[blaxsun]

Bubble algae, looks like hydnoids and possibly aiptasia in the second image (not clear enough to tell in the first).

 

[Mnmbrix]

Bubble algae, looks like hydnoids and possibly aiptasia in the second image (not clear enough to tell in the first).

I tried to get a better close up

 

[blaxsun]

Looks like an emerald crab in the third image but I can't tell what the "fluffy" thing is.

 

[steveschuerger]

Best guesses are sea star , possibly species of asterina in the first, no guesses in second and definitely an emeral crab in the 3rd.

 

[Mnmbrix]

Thanks everyone!!!! You are amazing

 

[encrustingacro]

The sea stars are Aquilonastra conandae

 

[MoshJosh]

Stars, hydroids, and aptasia

 

[encrustingacro]

The anemones are Exaiptasia diaphana, commonly misidentified as Aiptasia