Long Spine urchin with a taste for zoas?

JoeVandal49

New member
So i have had this particular long spine urchin for around 6 months. I always provide nori. It is always available.

Up until this point, it had not touched anything.

Fast forward to today, a large chunk of one of my purple people eater colonies, about 15 or so polyps, are gone, munched away, and about 5 or so polys are half eaten, and the long spine is perched on a rock ledge right above the colony.

In this display i have, pencil urchin, 3 small yellow tip hermits, 4 chromis, yellow corris wrasse, yellow watchman goby, Chocolate Tang, Lamarcks angel, Royal Gramma, and a tailspot blenny.

How certain should i be this long spine urchin has developed a taste for coral?

I had a large chunk of my chilli coral(one whole branch) disappear a couple weeks back as well.
 
I had considered that, but the polyps disappeared overnight, and the Chilli coral branch disappeared before either were added to the display.
 
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