Help! Zoa not opening

Redcar802

New member
I have a couple of colonies of zoas that will be partially open for 2 to 3 hours after the light turns on then will be close the entire time. It's a colony of scramble egg, rastas, Blondies, and purple ring.

I've dipped all with no evidence of any pest. Looks like the body of the zoa is shrinking or thinning?

My parameter is stable at
All 9
Cal 440
Mag 1350
Salinity 1.025
Temp 76-77

Any help will be much appreciated

Pictures now

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These is how they look like before
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Thank you!
 
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