Fertile? Infertile?

[kurtjs]

Hi I have had a couple different corydora lay eggs. Most of the eggs in top square are from Thursday and the eggs in bottom square are from today. Some mixed in I'm sure. There is actually 75-80 eggs in total. This is my 4th spawn, tried different ways of hatching. Current method is a 3.5 gallon tank with air stone. I had fungus problems all the other spawns but no fungus this time. My opinion is most aren't fertile, maybe a few are. Anyone with experience can let me know thanks!

 

[kurtjs]

Update....6 have hatched. I noticed some fungus growth on a couple of the bigger clusters of eggs So i removed them to be safe. Still have a good amount in the tank