Frogspawns not extending fully

[Picoflreefer.]

My frogspawns have been in my tank for almost a year. Always looking nice and full with full extension. Noticed they are swelling around the head of the coral and not extended like they usually are. Not sure what’s going on but the rest of my corals are open nicely. Any suggestions? Haven’t changed a thing. They have been like this for 2 days

ai prime
Alk 8.5
Calcium 430
Nitrate 0
Ammonia 0
Phosphate .07
Ph 8.2
Salinity 1.025
First picture is today and the second is the other day when fully open

 

[P-Dub]

Corals do the darndest things. Often, they are responding to something that we cannot test for or easily see. Unless you have a shrimp that has suddenly acquired a taste for them I would continue to monitor and be patient.