Flesh under torch coral receeded

[TheFishWizard]

Hi guys, I’ve had a torch, frogspawn and a hammer coral in my tank for a while now and the flesh under my torch and frogspawn are receeded. Has anyone else experienced this issue as well? The corals still open fully aswell.
parameters:
Kh: 9.8 dkh
Cal: 430 ppm
Mag: 1360
Nitrate: 2 ppm
Nitrite: 0
Ammonia: 0
Phosphate: .06 ppm

 

[vetteguy53081]

Pic on right shows a little excess flow as its bent over the skeleton. They require good calcium and and medium light and water flow. Feed at least 3x a week with mysis favorable.

 

[CypherSloth]

I’ve had this over the course of time with several euphyllia. Sometimes the receding makes no sense at all and comes back after their temperament eases. Always makes me think something bothers it in the tank when I’m not paying attention