I've had my neons drop eggs before but haven't been able to breed successfully. It wasn't my intention to breed them but they do spawn lots in my tank. In order for the eggs to develop properly, they need to be in darkness and are photosensitive. It's important to have nothing that could destroy the eggs such as snails in the tank or any other fish. I hope to breed them myself but for now I'm fine with what I have. Hope this helps!
Oh by the way this is one of my neons full of eggs