Haha yes the Tank had been up for three months now, I weekly feed, phytoplankton, zoo plankton and reef roids, I was just told that they were Christmas tree worms, they seem to be actually multiplying, I have 4 new little trees, luckily on Australia we have very limited information and products and crazy high prices. that is an Australian elegance coral of some sort, it's rather large, in the lfs it was only 6 inches in circumference but it is 12-14 in my Tank, thanks for your comments, as a newbie with two nanos it means a lot.