Um What the heck is this?

[Struggler]

So I came home late last yesterday night and decided to shine a flash light on my tank and saw this freaking monster. What the heck is it?

Kinda looks like a flat worm? But it has that shell like thing going on. And it seemed to be eating algae off of the rocks like a snail. Honestly looked like a slug. It has eyes just like a fighting conch and mouth like a regular snail

 

[James M]

stomatella snail....good guy

 

[ncaldwell]

Stomatella snail. Great snail, hides during the day