Tissue recession on the underside of stunner chalice?

[MoshJosh]

Just noticed this as I was leaving for work so I don't have picture or current parameters. . . sorry. The underside of my Hollywood stunner chalice seems to be receding/bleaching? The top is covered in flesh with good bright green color. . . I tried researching this and found mixed results, some people saying it was normal cause the chalice was shading out it's underside. . . I have my doubts.

 

[KrisReef]

Is it sitting on the substrate? Put it on a rock and see if it improves, maybe?

 

[MoshJosh]

Is it sitting on the substrate? Put it on a rock and see if it improves, maybe?

It's glued to a rock. . .

 

[KrisReef]

It's glued to a rock. . .

Plating corals often look bleached on the dark side but they can also have a disease that starts there. If the topside looks healthy and feeding it is probably fine.