Mr. Urchin is Back

[jimsar]

Many moons ago Greg65 gave me a diadema urchin. After doing it's job in my tank, I passed it on to Nukeproof, hmmm, about a year ago? Mission accomplished, so Pat asked if I wanted an urchin. YES, and he dropped one off this morning, turned out to be the one I gave him last year. Way to go!

 

[sfsuphysics]

Is it the size of a basketball??

 

[Mr. Ugly]

Is it that humongous one with the killer spines?