Grand Master Krak (GMK) dying? :(

[ISFNick]

Hello, my GMK has been doing really well in my tank, up until recently.
It started being really closed up, and it’s been like this for a week. Im afraid they’re going to completely melt and I’ll lose my investment in these awesome GMKs.
I’ll add that every other zoa/paly has been doing just fine. My Flaming Mohican has been closed up too but still growing.

 

[dhanking]

It is either too much light or too much flow. It might let go of the rock if it can so watch out for that.

 

[JustDewwit]

Sorry to hear about the GMK, How long was the frag in your tank?

 

[ISFNick]

Maybe 6 weeks roughly. It’s not melted but I think it’s getting there

 

[nano reef]

How do you know when its melted? I Recieved about 20 zoa's about 3 weeks ago and the only one that wont open is the grandmaster! I even have a spekled one doing fine! What should I do? I have moved it about 5 times after it quit opening. Should I dip it in iodine or I think its called medi coral by brightwell? I just bought both of those. It was open for a few days at first but hasnt opened since! Most of the new ones are in another tank. I was even thinking of moving it to that tank. I do have about 5 new ones in the tank its in and they are fine though except one utter chaos that feel in the sand bed face down a few days but even it is coming back!