Black limpet maybe?

[pudge]

This thing is big. Size of my thumb nail. Bad picture , but jet black with a shiny shell on his back.

 

[blaxsun]

Maybe.

 

[vetteguy53081]

Looks like Black stomatella snail. Very good algae eater

 

[pudge]

Looks like Black stomatella snail. Very good algae eater

That's it thank you!
Just seems to be grazing on the rocks.
Must have come in on a coral plug and survived the dip. I started with dry rock. 9 month old tank with LPS and softies.
Thanks

 

[vetteguy53081]

That's it thank you!
Just seems to be grazing on the rocks.
Must have come in on a coral plug and survived the dip. I started with dry rock. 9 month old tank with LPS and softies.
Thanks

Yes- you can’t buy them. They come as hitchhikers and generally hide during the day

 

[EeyoreIsMySpiritAnimal]

Yes- you can’t buy them. They come as hitchhikers and generally hide during the day

I buy them for 10 cents each at my lfs