ID needed starfish?

[Shahiem]

What is this? i found 2 of them on top in my refugium, crawling arou8nd quite fast for starfish rather fluid motion crawling, ive not looked further for more but ill bet ill find some. Friend or Foe?

 

[Gareth0508]

Bristle stars, tank friends

 

[Shahiem]

Thanks, just threw them back in to main tank...lol they got eaten by Cardinals in one swoop....gone!

 

[RiaanP]

Micro bristle star. Nice to see a green version.
If you got one, there are more likely a lot others within your rockwork.

Especially at night you would see their arms sticking out trying to catch food.

 

[anonymone]

I've got a s##t load in my tank.
Like Riaan says when it's dark tonight take a torch or your fone and you'll see.

 

[Picho]

Hi.
It is a serpent starfish.