ID: What are these..... eggs??

[jspine01]

I woke up this morning and found about 20 of these egg looking things on my glass. They are very flat and kind of resemble fried eggs with very large yolks.

They have not moved in 5 hours.

Very large versions of these pics can be found here: Link

Thanks in advance!

 

[Travis L. Stevens]

They look like it. Do you have Nerites, Nassarius, or Ilyanassa snails?

 

[bwest]

Snail eggs. They come off with a mag float on the viewing panes of glass. I always just left them go on the back wall though, and after a while given time to calcify and create their shells, you may see some small snails crawling around in your tank.

 

[Gdevine]

They are a real treat for your fish when they are in suspension and full of nutrients! My clown goes nuts when he sees me cleaning the glass just looking for the eggs that break loose

 

[jspine01]

Cool, thanks guys!

 

[Frick-n-Frags]

heh, the telltale is the eggs all over an astrea:

It's the Nerites