Pink Stuff ? NE1 Know what it is?

[vinsaltank]

This is some pink stuff that has been growing on my live rock for about a month. I am just learning how to post pictures. Much thanks to anyone who knows what this stuff is. I bought the liverock ( Cured ) at a Saltwater dealer.It has been in my tank for about 10 weeks.

 

[jacknjill]

idk but i have some like that also but a different color

 

[bigarn]

Probably sponges.