Worm ID?

[Jmacaroni]

Looking for some ID on this reef rock critter. There are a couple small worm things on this Fiji leather rock, and I have no idea what it could be! They appear to be coming out of their holes to eat the little old/decayed bits on the leather’s foot and then returning back into their holes. I have already found one baby feather duster, but it doesn’t look anything like these guys. Please let me know! I also am going to be taking out some aiptasia with Frank’s later!

 

[Gumbies R Us]

@ISpeakForTheSeas

 

[Jmacaroni]

https://www.reddit.com/r/ReefTank/s/PxImnRiIgA

Link to my Reddit post with a longer video of the worms

 

[DD0513]

Maybe a tunicate of some sort. Does it react to you shining light on it? If it does, probably a tunicate or worm, if it doesn't, possibly just a sponge of some sort.