Anyone willing to help me ID this starfish?

[Cobrasvt1999]

Got a new piece of live rock yesterday and guess who jumped off but 2 of these guy!

I just wonder if they are a pest starfish, or if I would rather have them?
Total size is about 1.5 inches from tip to tip

 

[joshua1992]

look to be brittle starfish there good to have since the eat detritus and any food that may not get eaten by fish

 

[Dkuhlmann]

Yes sir, brittle starfish and they're good to have. If you saw those you have many more. They're a very good member of your CUC.

 

[Cobrasvt1999]

Thank you all. Are they likely the same as the brittle starfish I have seen that get closer to a foot in size?

 

[thegrun]

No, they are mini-brittle stars, they may get to be the size of a quarter tops.