Matha's Sea Urchin

[andsoitgoes]

although this isn't a pic of MY urchin, it's almost exactly the same:



Anyone have any experience with these guys? mine is much smaller, and I was just completely floored by its appearance in OA when I went to get some supplies today. At 10 bucks and with shorter than average spines, he seemed a good choice, and is doing well so far - but do people have these in softy tanks with good luck? Don't want to see the Swiss Cheese of Mushrooms in the near future

nick