Some kind of feather duster?

[Pdajr24]

Just showed up couple days ago. Haven't put anything new in for a bit. Not sure what it is. It's "head" is kinda like a flower. Just flows. It's connected to a tube like body that is striped.

 

[Cathic]

Looks like a qtip sponge (they are sponges right?) but its really blurry to be definite, thats my guess though. Also, if thats what they are, they are harmless filter feeders/

 

[mariobrothersleeve]

Pineapple sponge? Still safe

 

[Cathic]

pineapple qtip same thing also called cotton sponges

 

[ErinCahir]

+1 to the boys.