What am I?

[CocoReef]

I just got back a few minutes ago from a 5 day trip and I found these, what Im assuming to be, filter feeders growing in the lower light areas of my tank on the rock. Anyone know what these are?
I will post my parameters as soon as I finish testing.

 

[Hypan]

Pineapple sponges

 

[Dronereef]

Sponges

 

[Andresnyc93]

+1 on pineapple sponges, good sign and harmless filter feeders

 

[CocoReef]

+1 on pineapple sponges, good sign and harmless filter feeders

Pineapple sponges

Yep thats exactly what they are. Thank you guys!