Urchin or file fish eating coral?

[reefer65]

My euphyllia has chunks missing out of it. I’ve seen my file fish eat zoas in my tank but could it be my long spin urchin eating them?

 

[laverda]

If Your euphyllia is not healthy your sea urchin will step in and clean it up. The urchin will eat the newer sofer skeleton as well. I don't thing the file fish will.