What are these? Snails? Sea hares?

[Photoevangelist]

What are these? Snails? Sea hares?

Came to my office this morning while the lights were off. There were about five of these hanging out around my turbo snail. I apologize for the bad pictures. As soon as the lights came on they were running from the light.

My first guess is that they would be reef safe since they were on the walls of the aquarium and not on my corals. They're kind of ugly, but as long as they are nocturnal, are reef safe and keep my tank free of unwanted algae they're welcome to stay!

 

[Photoevangelist]

Here's a few more, and one from the side. One of them was on the edge of my overflow box.

 

[EriksFish315]

Could be baby snails?

 

[Mrc8858]

Nassarius snails I believe very good cleaner and reef safe

 

[carey]

stomanella(sp?) snails. harmless....

 

[Photoevangelist]

Must be stomanella because I didn't see any shell on them. They were probably about a half an inch or larger in length so they aren't baby snails. I've got a few with some pretty, round shells growing too. Those are less than a millimeter in size so I can't wait to see how they develop. Thanks!