Arowanas are one.
Many fish and some frogs.
Tilapia
the fish are hatched :D
Well, If tanked fish reproduced and they are not livebearers they have an eggsack that is on the bottom/ the rocks and they sit there until the eggs have hatched. If they live in the ocean they still lay them in a tunnel or on the bottom to protect their babies
it eats their young/it keeps in their mouth
They are hatched from an egg.
Breathing.
arowana
Dory, the fish from nemo, was hatched from an egg.
eggs
When your Betta fish is fasting it means it is not eating, this usually happens after the Betta has bred and it will not eat until all the Betta eggs are hatched.
A "Fry" is a recently hatched fish.