What is this? Fuzzy White

[Cbryant54]

Please help me identify what this white fuzzy growth is on my GSP stalks. Is it algae, fungus something else?

Thanks all

 

[Saltyreef]

Pineapple sponge. Harmless filter feeder

 

[BryanM]

Indeed, harmless, and kinda cool looking IMO.

 

[StartingATank]

Pineapple sponge +1

 

[Cbryant54]

Thank you all, I appreciate the info. I'll just consider them something else cool to look at