Can anyone identify this?

[Eazilla]

I am new to the hobby, the tank is about 8 weeks old. The coral was introduced 3 weeks ago. I noticed a chiton, an Asterina Starfish, aptasia and this. I removed the starfish and will remove the aptasia but what is this in the picture and should I remove it?

 

[T-J]

Not sure what you want identified. Looks like a favia with its feeders extended.

 

[Eazilla]

Not sure what you want identified. Looks like a favia with its feeders extended.

The feeders, the night before it extended them I noticed aiptasia and an asterina, then the next night the feeders. I didn't know what they were but thanks for clarifying!

 

[Twigg]

Looks like favia to me as well.