Hi all, just picked up a few new hammer frags and have a question about one labeled as a Bicolor. Currently, it's a small piece (less than an inch) but all polyps are extended and it looks very healthy. However, it's only one color thus far: purple. I expect it should develop green, too, based on photos of the larger coral from the seller. Does anyone have experience growing these out and any insight as to when the second color will materialize (or what might trigger it)? Appreciate it!