I have 4 frags of different zoanthids. The pink ones continue to grow over the side of the rock as well as the red and green ones. These frags have been in the tank now for about 2 months and I have a piece of rock about 12" away from the "garden" and I have noticed 2 new very small green ones starting to grow. Great to see but didn't think they would or could just pop up like that in a different place of the tank.