The last time I got zoas they closed as soon as I put them in and melted a couple weeks later. I never saw them open again. Fast forward six or seven months and…
They’ve been in the tank for about 16 hours now.
The sand is much cleaner today. It aught to be. It’s been getting pushed all over. The new zoas and the duncans were both laying face first in the sand. I got them standing up straight in places that are better protected. After I placed them the zoas closed briefly but opened again within 5 or 10 minutes. I took the zoa picture once they reopened. As for the flow I might have to turn it down slightly.