Well ... don't worry, you eventually WILL have the babies, it's just a matter of time

My angels at first ate the eggs, then when the eggs were left, most of them were not fertilized successfully and turned white, and then ... voila (!!!) ... they made it

It takes time and it WILL eventually happen. All you need is a mated pair

I suggest that next time the angels are completely alone in that tank, no algae eaters or snails - it's safer this way. And as Carol has said, just keep the water clean and watch the parents raise their own if they will want to raise them. I personally had to remove the eggs and raise them myself - so I had to be doing 50% daily water changes for the first 2 months of their lives. It was a lot of work, but it was SO WORTH it
