Molly Fish for Sale in Australia

Choosing Mollies for Your Aquarium

Mollies are livebearing fish from the genus Poecilia, although many aquarium varieties have been selectively bred or hybridised. Body shape, colour and adult size vary between standard, Balloon, Lyretail and other forms.

Choose fish based on adult size and water requirements rather than colour alone. Compare them with other tropical fish before planning a community.

Water Conditions for Mollies

Mollies generally favour harder, more alkaline water with adequate mineral content. They may struggle in very soft or unstable conditions. Some species tolerate brackish environments, but this does not mean every Molly aquarium should receive salt. Consider the needs of plants, tank mates and the exact Molly variety.

Use a reliable aquarium test kit to monitor water quality and hardness-related parameters where appropriate.

Managing Livebearer Populations

Male and female Mollies can breed readily. Females may already be carrying stored sperm when purchased and can produce multiple batches of fry. Provide a plan for offspring and avoid overcrowding.

Feeding Mollies

Mollies are omnivorous and benefit from a varied diet containing appropriate plant material as well as protein. Offer quality tropical flakes or pellets, algae-based foods and suitable frozen or live foods. Browse our tropical fish food.

Mollies on the Sunshine Coast

Aquaholics stocks Mollies and other livebearers from our Baringa aquarium store on the Sunshine Coast. Colours, varieties and sizes change regularly, so check the current listings above.

Frequently Asked Questions

Are Mollies freshwater fish?

Mollies are commonly kept successfully in freshwater when water chemistry suits them. Many prefer harder, more alkaline, mineral-rich water. Salt should not be added automatically without considering the species and every aquarium inhabitant.

Do Mollies give birth to live young?

Yes. Mollies are livebearers and females can produce live fry. A mixed-sex group can increase quickly, so plan for population control before purchase.

How large do Mollies grow?

Adult size varies by species and variety. Many common Mollies reach roughly 6 to 10 centimetres, while some forms can become larger. Check the individual variety and plan the aquarium around adult size.

Can Mollies live with Guppies and Swordtails?

They can sometimes share a suitably sized aquarium when water requirements and temperament align, but compatibility is not guaranteed. Mollies generally favour harder water and may be more robust or assertive than smaller livebearers.