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yellow_tang2009
03/28/2017, 10:29 PM
Over the past five days, this colony of Zoanthids have started staying closed. It started with just a few polyps on one side and is moving across the colony.

Everything else is doing fine, and my water parameters are unremarkable. All of my other corals are open and happy.

They have been up on this rock face for maybe 35 days. I am using an AI Prime about 15" from the water surface.

I thought I might try dipping the colony in ReVive Coral Cleaner or should I move them to the bottom of the tank? Any thoughts?

Thanks!

AlSimmons
03/29/2017, 12:00 PM
Have you checked them for pests yet? (Nudibranchs, Sundial snails, Sea spiders, Asterina stars) Sometimes a dip in Revive or even freshwater is not 100% effective.

http://saltyunderground.com/category/zoanthid-pests-and-diseases

yellow_tang2009
03/30/2017, 03:04 PM
I ran Chemi-Pure and carbon last week and I think it may have just made my water too clean?

davered00ss
03/30/2017, 05:50 PM
Watching. My Zoa's have closed up the last few days.