Pink Anthelia - Light Show?

[tvanwinklehome]

Last night about one hour after lights out I noticed a light show of sorts coming from my Anthelia colony.

I am not alarmed but curious as to what is going on. Normal??

 

[Ludwigia73]

All corals have a phosporescence to them of some sort... most need a slight light to shine. Some have a glowing capability... maybe so they can read at night?