Neptune Aquatics

Green torch question

I have a quick question, do you guy's know what is happening with my green tourch coral.
In the daytime is happy and From what I've been observing, the torch is having from 1 head, is splitting in 4 heads, but I am not sure what is the big thing in the middle.

Is this thing normal?

I took the pictures in the nighttime because the tentacles are not fluffy and you can see it clearly.

I am not suppose to break the bubble right?
IMG_3196.JPG
 
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