Is this some sort of feather duster?

[Garrett706]

I'm noticing these bright red feather duster looking things popping up everywhere and I can't find anything online. Anyone know what this is and if it's good or bad ?

 

[bribo12]

Yep just red . I have a bunch of that exact kind in my tank

 

[Garrett706]

Yep just red . I have a bunch of that exact kind in my tank

alright thanks