Coral ID help.

[ktbug545]

I knew I had some type of coral on my live rock when it came in, but I assumed it was dead or would bleach pretty quickly.

My nice lights just came in, and within a day or two of installing the lights, the coral had started reaching tentacles out.

Anyone have any idea what these corals are? They are scattered all over my rock! Now that I know they are alive, i want to attempt to keep them alive!

 

[KJ]

Cup coral.

 

[sfin52]

agree with @KJ . nice find