I got a nub from a friend whose tort was on its last leg, the nub is now about an half an inch and doing well in my tank. When asked what it was, his reply was "blue tort". A little consulting with Mr. google and I came across both, and couldn't tell the difference from the pics and descriptions on line. It's all blue for the moment, really small though so I'll be on the lookout for the green, appreciate all the feedback. I won't be at the meeting since it's my Mom's b-day. Wouldn't be available till after 3pm.