Critter ID please

[Funwithreefer]

Found this guy sitting on my ph probe holder. Thought it was algae at first but nope. Some kind of snail or slug. Any ideas??

 

[IKD]

Looks like a stomatella snail. Good guys to have.

 

[Funwithreefer]

Looks like a stomatella snail. Good guys to have.

That was my first thought too. I do have stomatellas but they are all light color. This one is black.

 

[Funwithreefer]

Looks like a stomatella snail. Good guys to have.

Looks like there are black stomatella snails and they are very rare. How cool.