The life cycle of living things is seen as the time they spend from birth to death. The changes they show in this process, vital differences show the life cycle.

According to fish species, life cycles may vary according to each other. The average life span of fish is 20 years. Fish are a species that reproduce by external fertilization. Their life cycle can reach up to 20 years. The female and male fish that reproduce by spawning lay their eggs and sperm in the same place. Fertilization takes place and alive emerges.

Adult fish become larvae after they lay their eggs and sperm. Over time, the larvae develop and move to the host anemones. The fish become young and then become adults again. Life cycle of fish is very short.

The places where the females lay their eggs should be comfortable and spacious. If not, development problems may arise by seeing them. The fish should be comfortable for the safety of both the mother and the offspring.

They do not care for offspring, 

External fertilization is seen,

 Their blood is cleared by the gills,

 Their hearts are made up of two chambers, 

They are covered with scales, 

They are among the cold-blooded creatures.