ID please

[carl page]

These 2 guys just sitting on filter sponge when I open cube top....

 

[tautog83]

starfishhhh

 

[carl page]

I thought that but I've never had them in that tank....

 

[Reeferdude56]

those are a type of smaller brittle star if they are white, which yours are, they are harmless, they are good at eating deitritus in the rocks and left over food.

 

[carl page]

I have the bristlworms... Just had never seen the stars