Tunneling work Id

[Double J]

Noticed some tunnels/burrowing in the sand against the acrylic and with a flashlight noticed a couple small worms in them. Anyone know what these are and if they are ok to leave? They had to come in with zoa frags that were dipped, as I used dry rock and bagged sand. Thanks!

 

[TheEngineer]

Looks like a bristle worm to me.

 

[Double J]

Title should say worm not work, stupid iPhone auto correct

 

[TheEngineer]

Haha. Happens to us all. Sometimes much more embarrassingly