Was looking at the live rock in my sump from TBS tonight and found a very small urchin on a piece of rock. It's redish brown and kind of looks like some lighter colored stripes across its spines. It doesn't seem to have spines on top. Spines look to be more just on the side.
I tried googling for urchins from the gulf, but didn't come across any that looked the same.
I tried googling for urchins from the gulf, but didn't come across any that looked the same.