Yellow zoa question?

CoralReeForrest

New member
I recently got a good little mixed colony of zoas, it had yellow orange and green mouthed one on it. It was under MH lighting at the store brought them home put them on the rack which is about 8 inches from the lights, 2 10k t5 and a act t5. All the other zoas are all doing great however the yellows which I was super happy to get are 100 percent closed tight. Do yellows require a lot of light or far less then what I have? Any one with prior experience?
They were doing great for Saturday and Sunday but yesterday they stayed totally shut and continue to be.
 
Currently what they look like, look dead?
su9emynu.jpg
 
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