Micro Brittle Stars?

[Euphylliaphyle]

What are these tentacles emerging from my GSP? I noticed them while blowing detritus from the GSP mat. The polyps were all retracted, so I could easily see them. There were quite a few. If Brittle Stars, there are certainly more than one. See the bottom center of the video, especially.

 

[fishface NJ]

yes, it is a Brittle Stars. They are nocturnal scavengers and come out at night to eat detritus.