I've got a pink urchin in my 8G nano I need to find a new home for; it was a gift from Tampa Bay Saltwater (along with small condy that also needs to relocate). He's pretty cool and mostly reef safe: He will eat coralline algae which is good or bad (personal preference), and though I've never seen him do any damage to corals he does move around a lot, climbing over zoas and other corals. He'll knock things over that aren't glued down or otherwise secured, and seems to enjoy picking up snails, hermits, and empty shells and carrying them around the tank for a bit on his back. Anyway, if all that sounds awesome, I can bring him to the swap with me.