Green brain coral

I got a green brain coral through mail order with about 5 other corals about a week ago. The ones I have seen in the store seem to breathe and get smaller and bigger in size. Mine doesnt seem to do any of that stuff. It appears the other coral I got with it are thriving well. What would be the normal behavior? Other than what I mentioned it appears to be doing fine. Good color and everything.
Thx

 

there are about 6 billion different types of coral that are considered brain corals. Do you have a species?? Could you post a pic??

 

I cant get a good enough pic, but heres the name of it.

Green Brain Coral
(Trachyphyllia geoffroyi

 

trachyphyllia really don't puff up that much. Pictures would be cool but I think ur ok

 

Alright, thanks for the help.

 

Yeah.. the Wellsophyllia seem to "inflate" more. trachys usually look kinda hard.

 

Ya it does look kinda hard. I do like it quite a bit though. Pretty cool looking coral.

 

they are really cool. What colors did you get?

 

I got the one that seems to be pretty common. mostly grees, but when the actinics or the led's are on it just has a flourecent green glow. Pretty cool. The brain along with 4 zoas and a electric torch coral are my first corals ever and good for me, a beginner. I'm just trying to start off with easier coral and as I add them move into the more demanding coral. As long as I feel comfortable with them.