really not sure about this 'polyp'

So I have been wanting this pulsating polyp for a while now, but knowing we were going to move we held off on a lot of things we wanted. Move being done we went and bought three corals today. the lady at the store told me my one coral was a zeant something. Well i did not remember that being the name of what i wanted but it looked very similar so I got it thinking I just forgot the name. Looking into it this is not the coral I wanted. This polyp is not a single trunk like I wanted. So I have no clue what I have been stuck with. I can upload pictures but with our lights being on a set timer I do not want to throw its roomies through a loop so I will upload them in the morning. I dont know what they eat or anything so any help would be greatly appreciated.

 

Were they Xenia?

 

my guess without pictures would be a xenia or one of its cousins anethlia ( excuse my spelling). Very similiar but have a different structure I believe

 

Probably pulsing xenia. Love them!!! Easy to care for and will grow and split fast in my experience. Sometimes accidents can be the best additions!