Blue velvet nudi?

[ajhudson15]

Can anyone help Id this slug. It’s pretty much all black with two faint white dots on the back. The only thing I can find close enough is the blue velvet but I don’t see much blue. Only comes out at dark and slowly starts to go into hiding when I turn the lights on

 

[KrisReef]

That looks like a dreaded flatworm, dreaded because many of them eat corals.

 

[LovinlifeinGuam]

Can anyone help Id this slug. It’s pretty much all black with two faint white dots on the back. The only thing I can find close enough is the blue velvet but I don’t see much blue. Only comes out at dark and slowly starts to go into hiding when I turn the lights on

If you take a picture under white lights it would be easier to ID. It's doubtful that it's a nudibranch if it's been living in the tank for a while. The majority of nudibranch species quickly starve to death in captivity. The fact that it only comes out at night also makes me tend to doubt it's a nudibranch.

 

[TokenReefer]

Looks like an elephant snail I used to have.