Who done it?

[GarrettT]

Woke up this morning to a large chunk missing from one of my acros. The only thing that I would suspect is possibly my Foxface. Are they known to take chunks out of sps?

Tomini tang
One spot Foxface
Lunate wrasse
Melanurus
Clownfish pair
Wheeler goby pair
Variegated urchin
Tuxedo urchin

Currently feeding 3x day and algae sheet 2x day.

Any idea what may be going on here?

edit: Found the piece. Would this look like a typical nip from a fish?

 

[neonreef3d]

perhaps a hitchhiker, I had a halloween crab snip at my acro before.