Please identify this creature for me white ball in live rock

[Jonaripri]

Can someone please tell me what this is. Appeared in my tank beneath dark area of live rock. 90 gal saltwater tank with only foxface, yellow tang, two breading pair clowns, sea urchin, cardinal, some red leg crab -shelled , coco worm (feather duster). This picture is magnified....

 

[Blueiz]

Could it be some type of sponge?

 

[fsn77]

It does look sponge-like. Considering it was in a dark part of the tank, I'd lean towards that.

 

[tanker]

It is a type of sponge. Safe.

 

[Jonaripri]

Can someone please tell me what this is. Appeared in my tank beneath dark area of live rock. 90 gal saltwater tank with only foxface, yellow tang, two breading pair clowns, sea urchin, cardinal, some red leg crab -shelled , coco worm (feather duster). This picture is magnified....View attachment 215837

....Yes...thank you all for your response, I was able to find out it is a Pineapple Sponge.