I've got the same favia; it's a nice piece! Sadly the green on mine has faded a bit and the red has turned a duller brown.
It had been growing well for a few months, then it inexplicably stopped and changed color. Now, looking at it, the answer is obvious. Clove polyps.... So now I need to find a way to kill those....
Here's one from tonight:
Beautiful!
How about these little guys.
Here is one I've been hiding. Came in as a HH on a colony of Zoas and was about the size of a fingernail. It's a neon lime green with redish polyps. It's on growout but is growing well and the color is getting more intense as well.