None.
Probly depends on WHAT fish it is
No
If there is a male and female beta fish, the male probably ate them, and those 2 unlucky babies were definitely male. (male beta fish will kill other fish.)
Put the eggs or female fish in a different tank it will be better for the both of them.
No, the male should be kept with the babies. Once the babies are adults, the mother can live with the females.
Blob fish have babies by laying thousands of eggs. The female will then float over the eggs which will eventually hatch into thousands of young blob fish.
The female lays her eggs and the male fertilises them.
They don't have babies they lay eggs. A female will lay about 100-150 eggs
Not necessarily
Nope
The female lays the eggs then the male squirts the sperm onto the cluster of eggs.
All animals can reproduce. Bettas are no exception. When a male and female are left together under the right conditions, they will spawn.