splitting heads

All my other torches seem fine and this one for the pass 24h been acting weird. Is it splitting or something is going on?

Hi all reefers, I got this neon green-blue bubble coral few week ago, and it seems to have start splitting? I can't see its mouth clearly even after all polyps closed up. Attached video in white-blue light. Anyone have similar experience of bubble splitting kindly help, thanks!;Cat

Hi, Im Milo, only 7 months into the hobby and I have made a lot of mistakes along the way. One of my mistakes was not reaching out for help on forums so that's what I'm doing now. I own a 55 Liter (14.5 GAL) Nano reef tank. I have very little experience with corals and I have lost 5 corals but...