Copepods ?

[monkey-bean]

Noticed this tube structure attached to the glass today , inside are two copepod looking critters , the one at the entrance on the right has a blue stomach the other a third in on the left has brown .
Are the even copepods ?

 

[KJ]

Spionid Tube Worm.

 

[monkey-bean]

Spionid Tube Worm.

Thanks for the reply but they're not worms
I've tried to zoom in on both in the tube

 

[KJ]

Amphipod Gammarid.

 

[monkey-bean]

Amphipod Gammarid.

Brilliant, thank you KJ

 

[KJ]

YW