Originally posted by tikeyas_mom
not true. the sea urchin that i want to get, the long spined black urchin is not poisionous, i have them at work and i touch them often well cleaning the tanks...
True. Very true. In the aquarium hobby, black sea urchins- like the one you posted in your first post- are venomous. You are just lucky that it did not sting you, that's all, keep touching it and you just might- which means you will have to be rushed to the hospital!

Long-spined black sea urchin
http://www.liveaquaria.com/product/p...=23&pCatId=591