Hi! Okay let’s figure this out. The Xenia is super hardy once established, but ships incredibly poorly. Sometimes they end up dead and there’s absolutely nothing you can do.
I have seen both carbon and vibrant have terrible effects of Xenia trying to establish itself. It’s okay to run after the Xenia settles in and starts growing but if you’re running either of those I would stop for a while.
The Xenia should have pretty good flow on it, swaying back and forth much like a hammer coral should. Keep your nutrients up because they are filter feeders and like dirty water. Mine like medium light but I think flow is much more important than light for them. Good luck and I hope your frag pulls through.
The zoas may be closed for a couple days, go ahead and reach out to the vendor and tell them the situation so you don’t get screwed on DOA policy. If you have other ones, place them nearby and hopefully they will open there as well. Examine them closely for algae/debris that might be preventing them from opening. A H2O2 dip might be beneficial just to rule out bacterial or algae issues with them. Hopefully they open as well. I hope everything works out!