The end of the head of 2 of my bam bam polyps are starting to fold inward. Not a lot, but still enough for me to notice this. Does this have any significance, or does it happen sometimes?
Not that I know of. The only thing that bothers me is I got new lights. It seems to only be doing it on two of my polyps. I have a chromis and a Occelaris clownfish so I dont think they would nip at it.