03 9354 5843


Mollies are one of the most popular freshwater species in the aquarium trade and are perfect aquarium fish for beginners. Peaceful by nature, the molly is great for freshwater community tanks. They’re easy to care for and can adapt well to most standard tank setups. 

Coburg Aquarium stock a huge range of Live Molly Fish  and Aquarium Products, delivered safely to your door. 

Note: Pictures examples of stock only. Assorted colours supplied.


Features of Molly Fish

  • Mollies are found in parts of Central America, like Mexico, and the southern United States.
  • Molly fish have a flattened body with a triangular-shaped head
  • Male and female molly fish are pretty easy to differentiate. Males are usually smaller and have a pointy anal fin. The anal fin of the female is broad and fanned.
  • The average molly fish lifespan is around three to five years.

Molly Fish : Care, Diet and Tank Mates

The Best Aquarium Size for Molly Fish:

The molly can be kept in a fish tank with the minimum of 30 Liters. That tank size recommendation is suitable enough for up to four mollies, A larger tank is always appreciated to give your fish some extra space. After an Aquarium for your fish? Browse Aquarium Tank Selection here.

Tank Mate Compatibility:

The Molly is a very peaceful aquarium fish that can get along with a wide range of tank mates both in fresh and saltwater conditions. They are great with a wide range of community aquarium fish however slower moving fish should be avoided as mollies may outcompete them. Great tank mates for Molly include:

Coburg Aquarium, specialised in different species of live fish .

Molly Fish Food :

The Molly will eat a wide range of foods but would prefer to have high a floating nano pellet or flake due to its top dwelling behaviour. Giving them nutritional food with good protein will ensure optimal health. Feeding should happen once during the day during lighting hours. In Coburg Aquarium online, we stock a variety high quality fish food for your choice. Search fish food in our High Quality Fish Foods collections.

Molly Fish Tank Setup:

Aquarium Filtration

One thing you will need is a strong filtration system since mollies are big waste producers. A small group can easily raise ammonia and nitrate levels to unhealthy levels. Choose a powerful filter that can hold a lot of biomedia. Additional internal or external sponge filters are great, too.

Here are some great ones to consider:

Plants for Molly Fish

They will enjoy plants in the aquarium with great options being ferns, Anubias, Pogostemon, and Vallisneria as these are large and denser growing plants and allow for great natural breeding grounds and placed for fry to grow.

Interested in Live Plants for your aquariums? Click here to see more Fish Live Plant

Decorations for Molly Fish

Mollies do very well with natural decor that mimics the tropical rivers they inhabit in the wild. This means adding plenty of places to seek shelter, such as Cove, Pipe, and Driftwoods.

After more nice quality decorations? Check our Aquarium Ornaments .


Standard lighting is fine. Mollies aren’t picky about lighting levels, but you do need lights to keep the plants healthy.


A sand or gravel substrate would be fine for these fish as well as they spend most of their time exclusively at the top of the aquarium. However, because mollies like alkaline or high ph environments a crushed coral or aragonite sand would be optimal.

A variety of Substrates are available at Coburg Aquarium.

Additional Information

Other customers have purchased

Fish Keeping Snapshot :

Preferred Water Parameters :

Aquarium Set-up Service:

Our design team enables us to create the tank you desire, install your tank where you wish to and provide a maintenance service to ensure everything runs smoothly. We can create almost any aquarium from the small home aquarium to large commercial aquariums for offices, hotels or restaurants. Coburg Aquarium, Australia's leading aquarium shop.

Please contact us if you need any custom tank services.