When is mating season for fantail fish?

Fantail goldfish (Carassius auratus) do not have a specific mating season like some other fish species. They are opportunistic breeders and can reproduce throughout the year, especially during the warmer months when water temperatures are higher.

Here are some factors that can influence their breeding behavior:

* Water temperature: Optimal temperatures for breeding range from 68 to 77 degrees Fahrenheit (20 to 25 degrees Celsius).

* Water quality: Clean, well-oxygenated water is essential for successful breeding.

* Light: Longer daylight hours can stimulate breeding.

* Presence of suitable nesting sites: Fantails prefer areas with plants or other hiding places for their eggs.

While they can breed year-round, it's important to note that breeders often focus on breeding during the spring and summer months to maximize success and the survival of fry.