Hi
Not sure about lighting, but I don't see why that would be a factor.
Your eggs should be safe--I'm sure your male will defend the eggs in the bubble nest. Once the fry are free swimming though, they might become snack for the other fish. Can you remove the babies? Have you considered what/how you will feed them?
Hyla
PS I'm jealous! Our male is still trying to figure out how to build the bubble nest.