What are these?

[NinnJinn]

They have like one or two real fine white clear looking pieces of hair moving about or maybe it's just due to the current but anyways what are these??

FOWLR. Been set up and running for 11 months.

 

[KJ]

Spionid tube worms.

 

[NinnJinn]

 

[KJ]

Harmless good CUC

 

[NinnJinn]

In case you need a full view picture........

 

[KJ]

In case you need a full view picture........

Spionid tube worms
https://www.google.com/search?q=spi...ved=0ahUKEwigwrbH0O7fAhXBdN8KHWk4DdIQ_AUIDigB