red horned Nudi??

[Reefer40b]

I have a buddy thats has these brownish tan red horned nudibranchs(seaslug). Are they harmful, they are in his sps tank? I havent seen these before and they are quite small

 

[Reefer40b]

Another thought is could it be a baby stoma?? ..

 

[Crabs McJones]

Looks and sounds more like Vayssierea Sp.
It's a common sea slug. they're a good hitchhiker but feed on some tube worms and spirorbid worms.

 

[Reefer40b]

Looks and sounds more like Vayssierea Sp.
It's a common sea slug. they're a good hitchhiker but feed on some tube worms and spirorbid worms.

That sure looks like them appreciate it! I will let him know.