ID HALP! Again

[Joe5688]

I have these all over my eggcrate in my frag tank, what are they? lol

Good, bad? Get rid of them?

View attachment 1764

View attachment 1765

 

[Joe5688]

Kinda look like little feather dusters

 

[SkullV]

Pineapple Sponge. Harmless.

 

[Slimm]

PA Sponge was going to be my guess too. They are good.