Mini nudi branch or worm ID?

[Salty716]

Found on back side of a rock. Not the spiroribis snails, the little guys moving. Easiest to see on bottom left, bottom right, and top right are a few moving. Don’t seem to be bothering Coral but are munching away at detritus and algae it seems like so far. Definitely not red flat worms.

 

[KING KONG]

Found on back side of a rock. Not the spiroribis snails, the little guys moving. Easiest to see on bottom left, bottom right, and top right are a few moving. Don’t seem to be bothering Coral but are munching away at detritus and algae it seems like so far. Definitely not red flat worms.

Google search spirorbid worms . I have seen it somewhere in internet will inform u after checking

 

[KING KONG]

Google search spirorbid worms . I have seen it somewhere in internet will inform u after checking

If spirorbid worms, they are harmless