Anyone know what Oto eggs look like?

Does anyone know what an Oto egg looks like? I ask because I keep finding eggs in my tank, now I am fairly (talking 99% sure) certain that they are simply cory eggs. I have 2 peppered cory's in my tank, the eggs look like pictures I have seen of cory eggs, they are stuck to the glass. But... they are also on small leaves and stems of plants.

I have 5 otos in the tank, and 3 are considerably larger than the other 2. I am sure any fish that were in the tank got a nice snack yesterday regardless of what the eggs were. Just wondering if oto and cory eggs look similar and if next time I should try to save some.

Thanks.

Hmm hard to tell now if that's what I have. They look very similar, and I have 3 large oto's and 2 smaller ones, so maybe 3 female and 2 male.

I guess unless I see either the oto or the cory holding eggs though there is no way to be sure (or some manage to hatch and grow).