The Mollie or Mollienesia, as it was originally classified, has some of the most beautiful and unusual varieties of Live-bearer fish available today. They are bright and colour which really stands out in any aquarium. This is an assortment of different coloured Molly, we cannot guarantee any colours or patterns.
They inhabit fresh water streams and coastal brackish and marine waters of Mexico.
Please be aware that the image is for illustration purposes only. We are unable to guarantee the size, colour, sex or age of the fishes you are purchasing. If you have any questions regarding livestock please contact us. To minimise stress we are unable to hand pick specific fish. Lifespan is an estimate based on optimum conditions.
Approx. size: 4-7cm
Maximum size: 8cm
Origin: South America
Ideal number kept together: 3+ (2 females to 1 male if mixed)
Hardness: 143-536 ppm
Temperature: 18–28 °C
Ease of care
Easy. The sexes will need to either be kept separately or 2 females to every 1 male. They will harass the females otherwise.
The food we recommend is tropical fish flake. Take care not to overfeed your swordtails.
A community fish, take caution not to house in an aquarium with fin-nippers.
Breeding / Sex
Swordtails are live bearers so will spawn prolifically. Females can store sperm for up to 6 months, and can give birth to between 10 and 30 fry every 6 weeks. Swordtail’s can be sexed after around 5 weeks, males have a modified anal fin called the gonopodium.
They can live to anything from 1-2 years in perfect conditions.