Crystal Coral closed//Turns out not to be a CC

[noirsphynx]

I have a new coral that I just purchased 2 days ago. It's a crystal coral. It stays closed up all the time and won't fully open. It'll start to open but when I check later on it'll be closed again. It's not in direct flow. Does anyone know why this might happen? Here's a pic of it as it is now, all closed into a ball but when it's open it's tall and white with dark polyps. I can't seem to find any comparison pics on the net either.

It's in a 90g with 33g sump, 2 x Koralia #3 pumps, ASM G1-X skimmer & 6 bulb T5 fixture.
Params on Sept 12 were:
Temp. 80
Salinity 1.025
ph 8.3
nitrate 0
nitrite 0
ammonia 0
phosphate 0
calcium 360(I added a buffer to increase this afterwards)
carbonate hardness 200