What are these?

[Noodles]

Hi,
I'm kinda new here, I bought a used tank in December and have been reading a lot here on canreef!

I've got some little white things starting to show up everywhere, they're just under 1 cm long. What are they?

[Slyguy00]

Pretty hard to tell from your pic, Kinda looks like a sponge though

[SeaHorse_Fanatic]

Sponge. Good for the tank. Natural filtration.

[kien]

Originally Posted by Slyguy00

Pretty hard to tell from your pic, Kinda looks like a sponge though

Agreed. Looks like a pineapple sponge.

[Noodles]

Cool, thanks for the quick replies!!