Hi there, I'm new to coral keeping and is now starting with a easy starter mushroom coral. I hv the following mushroom for one week now. May I know if it looks healthy? I hv this concern cos I never see it fully open up. Sometimes it even curls up. And I saw one small little mushroom not far from it, probably ard 2mm in diameter. May I know how long it will take to grow to ard say 3cm wide?