Nine stages of fish growth and development.

First stage: female adult fish;
Second stage: male adult fish;
Stage three: the process of gamete fusion. The female has caviar, the male’s milk;
The fourth stage: fertilization of the egg;
The fifth stage: a fertilized egg – a zygote;
Sixth stage: an egg is formed;
Seventh stage: the larva, which is formed from the egg;
Eighth stage: fry, which develops from the larva;
Ninth stage: a young, immature fish;