Identify this "egg" on glass?

[winland]

I have at least hundred of these "eggs" all over my glass (150g shallow reef).
Just wondering if anyone can identify them.
They look just like a chicken egg, white blob with yellow yoke center.
They are just over 1 millimeter in diameter.

I have a variety of snails in my tank including Nassarius, Nerites, Astrea and Cerith. There may be a couple other types of snails also.

Just curious...

Thanks for any info you can provide.

Chuck

 

[Briney Dave]

I think I have seen an image very similar on the project DIBS website. That is where I would go to get it figured out.

most eggs on the glass are snails but that is not an egg mass like I see in my tank

 

[Drewhop]

I used to have a bunch of freshwater snails and they would leave eggs like that all over the place. I think you are going to have some baby snails in the near future.

 

[winland]

I am thinking that they are nerite snail eggs.
Nassarius eggs should have a clear bubble with white eggs.
Cerith eggs are usually laid in rings or ribbons.
Nerite eggs do have a white bubble with yellowish eggs inside.

Thanks for the help.

 

[RokleM]

I'm thinking you're correct. Somewhat lager eggs in a clump but no particular pattern I believe are Nerite. Cerith lay a number in varying patters from zig-zags, circular loops, lines, etc. Typically they're 1-2 eggs wide, with dozens in a row/line.