What are these eggs?

Any idea what these are?

The tank has Corys, and Bladder Snails?
(I think that's the kind of snail. They're pests.)

Thanks again.

corys

What kind of corys are you keeping? I haven't seen such large clusters of cory eggs before, usually only 2 - 3 together.

That's a small bunch for me. I usually get a few dozen up to over 100 in a bunch. My corys are pretty horny.