Im assuming he knows its an acro as he mentions it in the first post, Is there a specific name for it? Im curious myself
It's always tough to ID acropora, there are close to 400 species and they all grow differently depending on many factors. I'm sure someone will have a good guess, but in my tank it would be the "blue acro with green base"
I couldn't tell you the name of more than 2 pieces in my tank. -lol