I thought zoas were pretty during day

[PeterEde]

Seems this species are night feeders. Look to be far more active at night.

 

[AJsReef]

I'd expect them to open in the day as well, do you have anything that could be picking at them?

 

[PeterEde]

I'd expect them to open in the day as well, do you have anything that could be picking at them?

They do open during the day. Just look to extend more at night.