It really depends on the fish's species!
When fish eggs hatch the little fish can swim immediately.
It depends on how craw the fish is
Some fish hatch from fish eggs. Others are live borne.
Hatch time for fish eggs is completely dependant on the species of fish. Some fish take only a few days, where others can take over a month. by : Jan kosiek
Generally, cichlid eggs such as those laid by convicts hatch in three to five days. Convicts are relatively easy fish to breed.
Different fish species need different temperatures and each have different hatching/development time.
it hatches into a fish that u can hatch once u have bought the environment reasherch
The time it takes for fish eggs to hatch varies greatly depending on the fish species. It can range from as little as a few days to several weeks. Water temperature and other environmental factors also play a role in the incubation period.
fish mom
It takes about 2 to 3 months for salmon eggs to hatch. Use the link below to get more information on the life cycle of this amazing fish.
opening
Arowanas are mouth breeders, that is, the male will carry the fertilized eggs in his mouth and protect the young once they hatch. See the link below for a good overview of this fish's reproductive habits.