Brittle Starfish

Barch

Reefing newb
I was looking at my refugium today and found 3 tiny little starfish. They are dark in color and seem to have bands around the legs. Are these Brittle Starfish? They are about the size of a dime...how big will they get? I'm assuming they came in on the cheato that I got from the LFS the other day. Will they migrate to the DT? Just curious. I was actually surprised to see them.
 
Dont think they will get into the tank at that size......well it will make it into the DT but in pieces due to the fact that it has to go through the pump impeller.
 
They're not brittle stars but, micro brittle stars. Closely related but, wont get much bigger than the ones you saw. If you've got them in your sump then chances are they're in your tank as well.
 
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