How To Care Betta Fish Eggs. They will go to the nest and lay their eggs on the bottom or the sand just to make sure they are safe. Change 10-20 of the water in your tank every two weeks if you have a filter or change 25-40 of the water every week if you do not.
The process can take up to quite a few hours. The spot looks like a grain of salt and is actually the ovipositor tube where the eggs will come out of. The fry will hatch in about a week.
The frys labyrinths start developing when they are around 6 weeks old.
But if you need your female betta to give you some betta babies then you would need them together. The male of the Betta fish species will do his best to place the eggs into a bubble nest even when this is not his preferred choice of location. The male will guard the eggs until hatching. Youll see the male carefully take each egg in his mouth and spit them back into the bubblenest.