I really would not mind more on the rocks and the kids would really like a urchin so there is a good chance that one will eventually find it's way into my tank. Especially since my feather duster is probably going to a new home before my clown kills it.tuxedo urchins are pretty much reef safe and do a good job on algae and coraline. They encourage coraline growth by eating it which if you want more on your rocks is a good thing.
LMAO... too funny. My daughter has declared that when we get our urchin she would like the Tuxedo urchin. At six anything that sounds fancy and has color is a big hit, but hair cuts.... might make it a hard decision for her. Like the cat by the way.I always had a few of the black long spines in my tanks over the years. They grind the rock pretty good but tended to be a bit clumsy, as in their spines would knock stuff over. once a year I would give them a hair cut and snip off the spines to make them shorter. I am sure their is a picture somewhere on RF of a long spine with a mohawk.
Mojo