Resolved Unidentified white thingy.

I was looking at my tank the other day when I noticed something I am not sure what they are. They are growing all over the place on my rocks and some on the sand. Anyone know what they are?

 

Q-tip sponges.
Good sign of a tank settling in.

 

sweet. ty. will they get veey big?

 

No not much bigger than that.

 

Also called pineapple sponges too, correct?

 

I googled pineapple sponges and that is exactly what they look like..

 

very cool little creatures zgetman! I like the Q-tip name better - it describes them well

 

Thanks for the correction guys. More than one common name here?

 

after some research.. These are "syconoid sponges" They are called Q-tip sponges, and pineapple sponges. Thank you guys for the info and help.