Is that normal?

[Notsolostfish]

Okay so iv had this frogspawn for 2 months now. Its not bleaching, or dying or any of that. My lights are xr15 radion g5. Running at 65%

My alk is 7.2
Mag:1315
Calcium:415
Ph:8.2
Temp is 77F
Phosphate is 0.05
Nitrate is 10

The only thing i noticed with it. That it extends almost fully in the morning then during the day it shrinks. And i can see all the flesh around it is that normal?

Or it should be open and fully extended the whole day?

Thats how it looks later on in the day the blue video. Vs the the first video for the whole where its extended

 

[Spare time]

It might just be that at the peak intensity that the coral is shielding itself a little from the light. Corals in the wild do this as a way to protect themselves when the light is too intense (such as at noon/mid day)