ID Help Please

[Cocoa_Joe]

Hi Guys, First post but I've been lurking for a while.lol.

Need some ID help. I've had this tank up over a year now and this is the first time I've seen these. I'm assuming its a snail of some sort. When I first noticed it, one without the shell was attached(stuck?) to the one with the shell. Now they're separated and moving independently. Thanks in advance!

Video 1
Video 2

 

[SeaCucumberFan]

Yes the first one is a snail, I'm guessing margarita, nerite, or stomatella (might be a cowrie?).The second one I'm guessing is some kind of flatworm?

 

[Sugar Magnolia]

The first one is a stomatella snail, beneficial grazer. I can't tell what the second one is. Next time you see it put it in a container of tank water and take a few pics.

 

[Cocoa_Joe]

Thanks for the responses. I was thinking stomatella also. If I see the other one again i'll try to catch it. Last I saw it after taking the video it got picked up by my return current and my clowns were nipping at it. Probably didnt make it.

Thanks again