GSP growth?

[ReefDoc82]

Hi all, can anyone help me to identify what these white protruding spots are?

 

[Big G]

Sponges sp.

 

[mta_morrow]

Looks like sponge. Good!

 

[ReefDoc82]

Sorry but I’m a bit new to this hobby. Sponges...?? What type? Are the beneficial or should I remove them? How do I prevent them from growing if the are a pest.
Thank you

 

[ReefDoc82]

Sponges sp.

Thank you!

 

[ReefDoc82]

Sponges sp.

Thank you!

 

[ReefDoc82]

Looks like sponge. Good!

Thank you

 

[mta_morrow]

Sorry but I’m a bit new to this hobby. Sponges...?? What type? Are the beneficial or should I remove them? How do I prevent them from growing if the are a pest.
Thank you

Sorry I didn’t see this before you pm’d me.