Hopefully they will be fertile eggs.
Anyway today I noticed that Heckle was out of the nest taking a stretch. I had been wondering if she would incubate these eggs on her own without a mate. I looked up into the nest and my "lone" silverbill that I kept because of a handicapped foot was sitting on the eggs while she was out.
I guess while I wasn't looking, these two have made great friends.

I don't know if this silverbill is a cock or a hen. Hopefully it is a hen.

Otherwise I am going to have to watch them and make sure they don't slip any hybirds in on me.

So hopefully the two of them will foster the eggs together. I don't know..... it should be interesting.