ID?

[gemini9]

I just noticed this white patch of... something, on one of the live rocks I purchased about 3 weeks ago. I was rearranging my rocks in the tank and I noticed it. I'm not sure if it's anything to worry me, but I figured I'd post it. I may learn something new.

Very small at the moment, as you can see in scale with my pointer finger.

 

[Rob&Gab]

looks to be a dead coral of some sort.

 

[NanaReefer]

Agree. LPS skeleton.

 

[gemini9]

Ok. Better safe than sorry. Thanks!