Weird things on Ceramic media

[TheSheff]

Hey all, I just was moving things around in my tank and took out some of my ceramic balls for more space temporarily. What could be the things sticking out of it in the picture? They are soft.

 

[Tuan’s Reef]

Sponge harmless

 

[Jeffcb]

Maybe Pineapple sponge.

 

[TheSheff]

Sponge harmless

awesome, thank you!

 

[TheSheff]

Maybe Pineapple sponge.

awesome! I've never seen anything that looked like that so I wanted to ask lol

 

[doubleshot00]

Thats what you want.

 

[Jeffcb]

My sump is covered with them.