Unhappy Zoas

[Mark...]

About 3/4 of my Zoas in my tank have been closed up for a while. Over a week. Fish and everything (SPS etc) else is fine. Temp, is fine. Only thing different is I have been adding additional Soda ash and calcium to (about once every 10 days)., maintain level additionally to my kalk top off. Calcium is about 420, dkh is 8.1

Any thoughts? I haven't tested nitrates or ammonia, really don't expect them to be off.

 

[njtiger24 aquariums]

@Mark... I'm kinda having the same deal. I am thinking my issue is due to my polyps starting to take over; pulled them out last night. All my other corals seem to be doing fine. My dkh was low so I'm working on bring it back up but my zoas were mostly close before that drop happened

 

[saltkreep88]

Look up zoapox. They seem to pop up it the fall for some reason. Any new zoas recently?

 

[Mark...]

Thanks for the replies. No new Zoas...

 

[Mark_C]

Zoas tend to get into a funk with the approaching winter, the earlier evenings with DST, and general stress regarding the holidays.
Perhaps you can throw an impromptu party - play music, turn on weather and lightning effects, and provide the tank with beer and Doritos?