Uh oh...spaghetti o...

[Wudotcom]

Now that I caught your attention ( and I'm good at that) what in the urchin? Is it good, bad or ugly ( for you Eastwood fans).

 

[Havoks]

Looks like some type of urchin

 

[Best Fish-Jake]

I havnt come across a non reef safe urchin yet.. completely herbivorous. (Although if there isn't a calcium source present such as coraline algae they may eat stony coral skeletons) you really shouldn't have to worry about that though, I've got 2 short spines in my 30g