It is mating season for fish when it is really hot and dry.
Mating between fish is called spawning. Spawning season is different for each species of fish.
It will be chasing it around near it's butt and stabbing it with it's gonopodium...
Mating season for fish will be different each species of fish. Some fish may mate year round such as tropical fish, while other mate during the spring or summer.
Yes they do
Entirely depends on the species.
Sexually. Like a mixture between reptile mating and fish mating.
bellys get fater
Spawning is quite simply the act of mating in fish.