So I had started to find bald spots on some porites colonies, and noticed asternias around the damage. Although since I figured it was a coincidence, no big deal. Well, now these coincidences are becoming too frequent, here's a pic that IMO confirms it.
3 on the frag ( likely eating it, you can see the damage) and a few more heading over to finish the job.
3 on the frag ( likely eating it, you can see the damage) and a few more heading over to finish the job.