Be patient. Don't move it yet. Make sure the conditions are good, then wait. Mine took a while to open and are doing well. I had one tiny patch that was grabbed by a brittle star and pulled under a rock. I assumed it was history. About 4 days later I saw three polyps. I lifted up the rock and found four more. (I took the brittle star in to the LFS) These polyps looked like empty purple tubes, but I figured what's another few days. I stuck them in a couple of recesses on a rock where the water movement wouldn't blow them away. After a couple days of no signs of life, I saw a couple specs of bright green. Now, weeks later, I have another two patches of green star polyps. Give them a chance. You can always move them, or part of them.