Can anyone ID this coral?

So I made an impulse purchase of this coral at Petco for 12 bucks. I thought the cadmium/mint color was unique and couldn't resist. I don't really know what it is. My best guess is some kind of cup coral. When the polyps are retracted it sort of looks like a favite but I've never seen one of those with polyps that extend out with little heads like this does. Any ideas appreciated.

 

I shrunk it a bit to make it not as stretched out. Hopefully a little better.

 

We have two here that are actually pretty decent, as far as Petcos go. The one by Jordan Creek Mall has ok tanks, and 1 or 2 people that know what theyre doing. The Windsor Heights one isn't terrible either for fish, for corals it sucks.

 

Here it is with the polyps extending. Any further thoughts given that change?

 

Thanks. I'll find a small piece of rock to sit it on. Hoping it comes around fully. It looks like it got beat to hell at Petco, but it is already looking better.