Shell-less Snail?

[316Reef]

Noticed a few of these around the tank at night. Tank was started with dry rock so I’m assuming it hitch hiked in on a coral (all corals dipped in Coral RX) and multiplied.

Looks like a snail without a shell. Has tentacles and red stripes/markings on its back. Friend or Foe?

 

[keagan]

Stomatella the red part on its back is a small shell. They're good CUC.

 

[StartingATank]

+1 for stomatella. Great CUC and multiply very successfully and quickly in captivity, I bought 2 from somewhere and now I have like 100 of them

 

[jackintheboxfish]

Stomatella for sure! They are a lot more active at night ime

Some fish will pick at them if they get hungry enough just FYI