Worms on sump glass

[Wingizzmo]

Any ideas?

 

[KJ]

Feather dusters harmless filter feeder.

 

[SmokeyGnar]

Feather dusters. They’re good guys. I love when they attach to glass like that and you get to see them from the other side

 

[Wingizzmo]

Feather dusters. They’re good guys. I love when they attach to glass like that and you get to see them from the other side

Thanks for the reply

 

[cristata.reef]

Spirorbid worms. They'll just kinda pop up everywhere. Good filter feeders. IMO they spread quickly and I like to scrape them off the glass