Acquired these from the same guy I got the watermelon zoas from. They still have some algae hanging around. They grow quite will and have an awesome feeding response. When new babys appears, over time, they will actually "walk" away from the parent to find a spot they like. Takes about 3 or 4 weeks, and they will move up to 2" (that I've noticed). Very cool. They also get large - I've seen one open to almost 2".