How can you tell if an Echinophyllia is happy?

[salmon alley]

Sorry, there's no punchline..it's a legitimate question.

I got a chalice from my LFS about a month ago, placed it low in the tank where it got mod to low light but moderate flow.
Never seemed to thrive, so I moved it slightly lower in the tank where it is more sheltered from current.
I may be seeing things but I swear the surface has thrown up many more spikey projections in the 48 hours since I moved it.
So I ask you, do the projections mean it's more or less happy?

 

[All Delight]

It sounds like the "spiky" projections you're talking about is the skelton. If they start to poke through the tissue, thats bad.

When its happy the tissue looks fluffy, pillow like.