It looks like the aiptasia is bothering that colony you posted in the 3rd pic. Like Fleshy said, hope your peppermint shrimp chow down on them. I had some not opening for a while after I got them and I put them in less flow and light even though I found alot on the internet saying to do the exact opposite.
i looked at the rock before and after i dipped it and found nothing...... im going to give it a few more days as it might still be getting used to the tank
Good luck with the frags, I hope that they continue to open up...strange it would take this long, most of the time zoas are open after a few minutes in tank for me.