Egg sack on glass? ID?

[spideybry]

Hi - I am trying to figure out what these are.

First Egg Sack -

They first showed up two days ago and the mucous degraded over time by yesterday evening.

Today, there's a whole new sack a few inches over from where the first one was found.

Egg sack from today -

 

[MnFish1]

What do you have in the tank?

 

[spideybry]

What do you have in the tank?

Invert wise, not much - Florida ceriths, dwarf ceriths, astreas, bumble bee snails, a fighting conch, and a tuxedo urchin.

Fish, I have a mystery wrasse, pair of clowns, and a damsel.

 

[MnFish1]

Seems like it would be snails of some kind.

 

[Isopod80]

Cerith eggs. Here's a similar example.

 

[spideybry]

Cerith eggs. Here's a similar example.

Interesting, I’ve always seen ceriths have more a ribbon type egg strip before.

Thanks.