Will pincushion urchin eat chaeto

[authentic]

Moved mine from my main display into my sump...moving too much around....will it eat my chaeto?

 

[Kamden Uelton]

mine doesn't eat any macro algae, however all urchins are different.

 

[ThunderGoose]

Mine does show interest in Nori. I think she eats it but I've also seen her carrying it around until it falls apart.