Think its the combination of flash from the camera and the lighting becuase it actually is white. There is a little one to the right and above the ricordea that is the blue xenia.
Here is a little point out. I have two other really nice ricordea in the "bowl" coral on the far left. They really like it in there but you can't see them unless you look into it. And, NO I am not trying to be overly AR...just helpful.