Brittle Starfish?

[huskerreefatl]

I just bought some chaeto for my fug and have some hitchhikers. It looks like I have 3 brittle starfish and something else, atapsia? Photo 1 is the brittle starfish, I think and Photo 2 is the something else. ID please? I have two large brittle starfish in my tank so if these are brittle starfish, should I add them? Also, what about the "something else"?

 

[sewer urchin]

Yes, I would add them. They look like micro brittle stars (a great member of the clean up crew). I picked up some Codium from RAZ0945 at the last meeting and it had a bunch of them in it. One of the few times I got a good hitchhiker

 

[sewer urchin]

as for pic 2..... I'm sorry I can't tell. Looks a bit like a brown fuzzy lump.

 

[huskerreefatl]

Thank you for the input. Brittle stars are going in. The other has opened up more and I think that it is atapsia....so not going in.