chalice Turning White

[Enki]

I have a large 3g mummy eye chalice that has some white discoloration on one edge of the coral, less than 10%. The coral seems otherwise healthy. The coral is on the bottom of the tank elevated on a Alternative Reef Frag Station Rock Little Uns. The porting that is unhealthy is close to the glass in the front of the tank. I have had the coral for well over a year and it has more tripped in size. The chalice has no where else to encrust on the rock it is on, its covered the plug its on 100%.

My other chalices are doing fine even growing more eyes.
I have what seems to be healthy growth with almost all my other corals.

 

[JJsReeftank28gn]

What lights are you using and have you changed that in any way or intensified the lighting in your system. It sounds like bleaching .

 

[SpottedMoocow]

Pictures would be a great help. Some of my chalices' growth on the edges is white and will color up with time.

 

[rajilnaja]

I bleached a HW stunner when upgrading my LED lights, took forever to even start coloring up again. 2 months later and its still not 100% back. Doesn't take much sometimes to cause some bleaching.

 

[Fonn]

Could it be new growth tissues like someone just mentioned ?

 

[Reef Bass]

Is it white because skeleton is showing (tissue death)? Or is there still flesh present (bleaching)?