Hi djr1.
I understand that your not familiar with forums. It also appears that you are typing from a phone. One thing I think would help everyone is if you considered your posts like you were typing a letter or email and not a text. When you type a text you don't use punctuation and the format looks very different. While this is fine for texts it makes a forum post very difficult to read. Without punctuation your posts read like one giant run on sentence because of the lack of punctuation.
In regards to cory breeding,
I understand that you like to keep things natural but you have to remember that an aquarium is not anything close to natural habitat for the fish. In the wild, the levels of egg killing fungus are much lower than in an aquarium. You also have bacterial and fungal inhibiting plant compounds in the water. Breeders use methylene blue and acriflavin as fungal inhibitors to prevent eggs from being attacked by fungus. You can also use natural products like alder cones and almond leaves for the same purpose. I use a little bit of everything depending on whether I am raising the cory eggs in the breeding tank or moving the eggs to a hatching container.
Your tanks sound very attractive and good luck on your future breeding efforts.
Andy