What is this?

[Rockka75]

I just got 45 pounds of live rock and this is on it. Does anyone know what it might be?

 

[carried]

Looks like pineapple sponge.

 

[Sniperhank]

I want to say pineapple sponge as well. Keep an eye on it just incase.

 

[Rockka75]

I thought it was Aiptasia and have been using Joes Juice on them. Not sure of your looking at the same thing i am. It's the white fuzzy patch in the middle on the right rock. Not sure if I should continue treating it now. :/