Help Identifying

[Alberta-newb]

Here's Melev's ID page for snails and nudibranchs: http://www.melevsreef.com/id/snails.html

Pretty handy site for IDing stuff. It's a good chance what you saw was a stomatella snail, I seem to have hundreds of them that came with my LR.

Francis

[MikeP]

Sounds like a stomatella. They are harmless algae eaters.