What is this Coral?

[Whatigot]

Funny, I bought about 60lbs of Cuban LR at King Eds about 3 months back and had a good amount of this porite show up on mine as well and you will not find any sweepers coming from them.
Did you get a ridiculous amount of pistol shrimp (I have seen 9 in my tank at one time, who knows how many others are in there) as well?

I noticed while I was at JL that the corals like yours showing up on my rocks were the same as the symbiotic porites that exist with Christmas tree worms and sure enough, a tonne of them started to pop up recently on my LR as well.
I bet you will notice many of these on your rocks shortly.

http://www.jlaquatics.com/phpstore/s...uct_ID=c-ixmas