Bubble coral id

[Fishko]

Bought this bubble coral as a small frag for 20$. I was curious if its a wall bubble coral or just its general name. I think its just a green bubble coral. Its been growing fast.

 

[bday1335]

Looks more like a Fox Coral than a bubble from that picture

 

[Fishko]

I was looking at some pics online. Could be. I guess in a few months or a year ill know for sure. I think it needs to develope more, but ive always been curious why it didnt really have big “bubbles”