How long does it take for tetra fish to have babies?
A single female tetra can lay anywhere from 60 to 130 eggs, which take approximately 24 hours to hatch. Once the eggs are laid and fertilized, return the adults to their regular tank as they will tend to eat the eggs or the fry once they hatch.
How do you know if a tetra fish is pregnant?
Have you noticed that your tetra fish has gained mass, especially around the abdomen and tail? A female beta fish’s abdomen will grow before it spawns. There will also be a dark spot on the underbelly of the fish near the tail. The dark spot usually shows right before the fish is due to spawn.
Should I separate my pregnant fish?
Ideally, pregnant females should be placed on their own in a separate aquarium with lots of feathery plants where they can give birth in a stress-free environment. Then again, once she releases the fry she is returned to the main tank and the fry can be grown on separately.