Tube anemone splitting

[Shirtlessbill]

Hey all, Kind of an exciting reef day today for me. Saw some stomalia throw their reproductive clouds into the water column and it would appear that my tube anemone is splitting.

Maybe I'm wrong however it looks like a crease is forming on its body and the once circular mouth is taking on more of a "figure 8" shape.

If it is splitting what should I do? Will both occupy the same tube or will one have he mindset to leave and make its own?

Thanks