Can someone identify this pest?

[nycjwi]

Can anyone identify this critter. I have quite a few and all I see are little arms sticking out. Here are some pics. This is not Aptasia.
Are these guys problematic?
thx

 

[ying yang]

Not sure but maybe some kind of banded brittle star fish.maybe look them up if havent already ruled them out but following along to see what they end up being ^_^

 

[dvgyfresh]

Not sure but maybe some kind of banded brittle star fish.maybe look them up if havent already ruled them out but following along to see what they end up being ^_^

Brittle starfish

 

[Frostblitz20]

if its a brittle starfish then its not a pest good CUC

 

[RedReefer]

Brittle starfish. Most likely safe to keep. Good cleaners.

 

[dvgyfresh]

Brittle starfish. Most likely safe to keep. Good cleaners.

I do have a micro brittle living inside sps :mad: lol flesh is dead around it