What the heck is this

[Jerinanyon]

Look under the candycane. There's a squishy thing growing under it. I'll send a close up when I get home. 4 months and 3 new heads! Is this thing an addition to the skeleton or is this a sponge maybe? It looks like a really dense spider web.

 

[bribo12]

Sponge for sure

 

[Jerinanyon]

Good or bad? Should I remove it