Typicallyfish are born one sexand at a later age will switch to the opposite gender. A female switching to a male is called a protogynous hermaphrodite; males switching to females are classified as protandrous hermaphrodites. Both of these types of reproducers still need a fish of the opposite sex to reproduce.
People also ask
Are nearly all fish male or female?
After this most of us would probably expect that, when the juvenile fish sex out, there would be roughly the same number of males as females. Instead, many times aquarists find that they have nearly all males, or nearly all females. What happened?
How do fish reproduce sexually?
For some species of fish, reproduction is beyond casual. Females release eggs into the water, males release sperm, and the eggs get fertilized. No physical contact involved. Just a few species prefer internal fertilization攖hat is, fish-on-fish action.
Do female fish mate with each other?
The females may mate with males, but the sperm is not used for reproduction. Hermaphrodites possess both male and female reproductive organs. Typically fish are born one sex and at a later age will switch to the opposite gender.
Can reef fish change their sex?
A number of reef fish, and some freshwater species as well, may actually change sex several times during their lifetime. Labroides dimidiatus, the saltwater cleaner fish, lives in harems of females attended by a single male.