Never seen this disc before

[Keithb22]

Hey everyone,
Been a while since I’ve had to post anything up here thankfully but it comes times for some much needed help. I noticed this weird disc like thing on one of my rocks and have not been able to find anything like online. Does anyone have any idea what the heck it is? Any help is very much appreciated.

Keith

 

[Hydrored]

Looks like a verminted snail, photo is hard for me to see

 

[Fishy212]

I have a few of these disks in my tank can’t really tell from your picture for a positive ID. This is old sand from years ago. Could be some kind invert or possibly a snail

 

[Crabs McJones]

Any snail shells laying around? Sort of looks like a snail operculum

 

[Keithb22]

It’s very odd looking, flat and symmetrical. I have a ton of clean up crew that get rotated around due to my 6line, so there are quite a few laying around. But since I have the hermits in there I just let them be Incase they need one.

 

[Keithb22]

Any snail shells laying around? Sort of looks like a snail operculum

had to look that up, definitely looks like it. Is it common for them to loose them?

 

[Scotty Buttons]

had to look that up, definitely looks like it. Is it common for them to loose them?

They lose them when they die.

 

[Keithb22]

Ahh alright, that makes a lot more sense. Poor fella never had a chance. Appreciate everyone’s help on this