what are these?

[ChrisfromBrick]

the white things if you zoom in.

 

[Kmst80]

Looking like pineapple sponges.

 

[PharmrJohn]

Huh. Those are interesting. Just tried an image search and came up with a white puppy. Stupid image search.......

 

[JoJosReef]

pineapple sponges. I've got thousands of them in my "AIO sump". They filter feed. Generally a good thing in the right place

 

[WalkerLovesTheOcean]

Are you talking about these?

If so, those are pineapple sponges.

 

[ChrisfromBrick]

Are you talking about these?

If so, those are pineapple sponges.

yep! That’s the one! Cool. ok