Can Mollies and Guppies Live Together Happily? (Solved)

Are you considering adding mollies and guppies to your aquarium? Undoubtedly, their communal living would add much beauty to your tank.

However, it is not necessarily easy to care for these two species of fish to become their best friends.

Even though they share similar needs and requirements, male guppies and mollies can be very territorial when housed in an aquarium – making a peaceful co-existence difficult or even impossible at times.

can betta live with guppies

In this blog post, we’ll discuss the reasons behind any potential disharmony between the same species and give helpful advice on ensuring that both fish live happily!

Which Is Better Guppy or Molly? (Molly vs Guppy)

Mollies vs guppies: Ultimately, it depends on what you want in an aquarium fish.

Mollies are generally larger and more robust than guppies, making them better suited to tanks with plenty of room to swim around.

They also require slightly higher temperatures and water parameters than guppies – so they can be a bit trickier to keep in smaller tanks.

On the other hand, guppies can thrive in various water conditions and are less demanding regarding temperature.

They also tend to be more energetic and active than mollies, so that they may be a better choice for smaller tanks.

Can Mollies and Guppies Live Together?

Can guppies and mollies live together? It is possible to house mollies and guppies together in harmony if certain conditions are met.

The first thing to keep in mind is that mollies can be pretty territorial and aggressive species towards each other, so it’s essential to introduce the two species into a large enough aquarium that allows for plenty of space and a swimming room.

It also helps to add more mollies than guppies – as guppies tend to outnumber larger fish, which can lead to bullying in the tank.

Finally, keep up with regular water changes and monitor your tank closely for any signs of aggression. If done correctly, mollies and guppies can live peacefully in the same fish tank!

Are Mollies More Hardy Than Guppies?

Mollies are generally more hardy fish than guppies, which can tolerate a broader range of water conditions and temperatures.

This makes them easier to keep in a larger aquarium with minimal maintenance – as long as there is plenty of room for them to swim around and hide.

Guppies, on the other hand, prefer cooler temperatures and do not tolerate drastic fluctuations in water conditions.

They also require frequent water changes to stay healthy – so they may be harder to maintain if you don’t have the time or resources for regular tank maintenance.

In conclusion, mollies and guppies can live together happily if the tank is large enough to accommodate both species and you keep up with regular water changes.

It’s important to remember that mollies are hardier than guppies and may be better suited for a bigger tank with plenty of room to swim around.

By providing a suitable living environment, you can ensure that mollies and guppies can live together peacefully in the same tank.

Mollies Vs. Guppies: Difference between Guppy and Molly

The most significant difference between guppies and mollies is their size. Guppies are much smaller than mollies, which makes them better suited for tanks with limited space.

Mollies also require higher temperatures and water parameters to stay healthy – while guppies can tolerate a wider range of conditions.

Guppies are also more energetic and active than mollies, so that they may be a better choice for smaller tanks.

The best aquarium fish to choose depends on your tank size, water conditions, and requirements. By considering all of these factors, you can ensure that both species live happily, side by side.

Difference between Molly and Guppy Fry:

When it comes to Molly and Guppy fry, there are several significant differences between the two species.

· First, Molly fry tends to be larger than Guppy fry – making them easier to spot in the aquarium.

· Guppy fry also grows faster than fresh fry and reaches maturity quicker – so they may be better suited for those looking for immediate results.

· Finally, Molly fish fry is more sensitive to water parameters than Guppy fry – so they may require frequent water changes and monitoring to ensure their health and vitality.

Overall, both species of fry are fun and rewarding to keep in the aquarium – but it is essential to be aware of their unique requirements when deciding which species to add to your tank.

Will Mollies Eat Guppy Fry?

Mollies are omnivores and eat various foods, including insects, worms, and plant matter. Therefore, mollies may be tempted to eat guppy fry if given a chance.

It is vital to keep the tank separate or use physical barriers such as plastic plants or rocks to separate the two species. To prevent this from happening, 

It is also a good idea to feed mollies larger foods such as fish flakes, brine shrimp, or bloodworms – so they are less likely to target smaller Guppy fry.

By following these simple molly fry care guppies tips, you can ensure that both your Mollies and Guppies will have plenty of food without the risk of harming either species.

Guppy Vs Molly Vs Platy:

Mollies, guppies, and platyfish are all popular choices for freshwater aquariums.

In terms of size, mollies tend to be the largest of the three species – reaching up to 4 inches in length when fully grown. Guppies and platyfish both typically top out at around 2 inches in length.

When it comes to temperament, guppies and platyfish are generally more peaceful fish than mollies – making them better suited for community tanks.

Mollies tend to be the most active of the three own species, so they may require more space to swim around and explore.

All three species can coexist in the same heavily planted tank – provided it is large enough to accommodate their needs.

With proper care and maintenance, you can ensure that your aquarium will be filled with colorful and active fish for years to come.

Can Molly and Guppy Cross Breed?

Can female guppy fish and molly breed? Mollies guppies crossbreeding is not advised as they do not produce viable offspring.

Mollies are a larger species than guppies, and their baby fish cannot survive in the same environment as guppy fry.

Even if molly fish and guppy fry could coexist, crossing two different species often results in unhealthy or deformities in the fry – so it’s best to avoid mixing the two.

If you are looking for a mix of mollies and guppies in your aquarium, purchasing them separately and keeping them in their tank is best.

Keeping these two species separate will ensure they stay healthy and happy – while avoiding any unwanted crossbreeding.

Molly and Guppy Hybrid:

Molly and guppy hybrid (also known as mules) result from breeding a female molly fish with a male guppy fish. These hybrids usually have large fins, vibrant colors, and an overall larger size than either parent species.

While breeding these two species together is possible, it’s important to remember that the resulting fry is generally sterile and can’t reproduce.

Hybridizing is a controversial practice among aquarium hobbyists, as it often results in deformities or health problems for the beautiful fish.

Additionally, these hybrids are usually not as hardy as their purebred counterparts and may require more frequent care and maintenance.

Can Mollies and Platies Live Together?

Platies and mollies are the perfect combinations for peaceful fish aquarium inhabitants. These two species coexist harmoniously, making them ideal candidates for a thriving community tank environment.

Mollies are larger, more active fish, while platies are smaller and less busy. This means they won’t compete for food or space in the aquarium and will often be seen swimming together in groups.

Both species tend to have vibrant colors, so adding a few specimens to your tank will create an eye-catching display.

When it comes to tank maintenance, both mollies and platies need a clean, well-aerated tank with plenty of space for swimming.

They will also benefit from adding live plants and hiding spots to feel safe.

These simple guidelines ensure that mollies and platies will thrive in the same aquarium. You can enjoy these colorful fish for years with proper care and regular maintenance.

Will Mollies and Guppies Fight?

Do mollies and guppies fight? Generally, mollies and guppies get along quite well in the same aquarium environment. While mollies are larger than guppies, they are typically peaceful and not aggressive toward other fish.

However, it’s essential to keep an eye on their behavior – as any signs of aggression or fighting should be addressed immediately.

Mollies and guppies require plenty of space to swim, so you must provide a large enough tank with plenty of hiding spots. Fighting could occur if the aquarium is overcrowded or if there needs to be adequate shelter.

In addition, be sure to feed them equally – as any signs of bullying or dominance could signify that one fish is getting more food than the other.

Do Mollies Eat Guppies?

No, mollies do not typically eat guppies. While mollies are omnivorous and primarily consume plant matter, they also enjoy frozen or live foods like worms, shrimp, and mosquito larvae.

Guppies are much smaller than mollies, so it’s unlikely that a molly fish would attack a guppy. However, they may still try to nibble on guppies if they are nearby.

It’s best to keep mollies and guppies in a separate tank or provide plenty of hiding spots for the smaller fish to avoid potential conflicts.

Additionally, it is essential to ensure that all fish have access to food – as any signs of bullying or dominance could lead to fighting.

By providing a large tank with good hiding spots and plenty of food, you can ensure that your mollies and guppies will get along peacefully. They can live happily in the same aquarium environment with the proper care.

Why Is My Molly Attacking My Guppy?

Will Mollies Attack Guppies? It is not uncommon for mollies to display aggressive behavior towards smaller fish, such as guppies. There are a few reasons your Molly fish may be attacking your guppy.

First, it’s important to note that this type of aggression is common among mollies and can occur even when two different species inhabit the same aquarium.

One possible cause of aggression could be territorial behavior.

Like many other types of fish, mollies tend to establish small territories within the aquarium environment and will defend them against any intruders—including other species.

If only one shelter or resource is available in the tank, like a hiding space or food source, then fighting over it may ensue as each individual tries to claim ownership. 

Additionally, if an imbalance occurs in the ratio of male and female mollies fish within a given population—known as sexual dimorphism—it can also lead to increased levels of aggression from males toward female specimens who don’t carry their territory.

This is because males find females more attractive than other males and will sometimes target them for breeding purposes instead of fighting with members from their gender group.

When overcrowding occurs, this issue can become particularly pronounced since there will need more resources for everyone in the group to share, which increases competition between all genders for survival needs like food and shelter locations. 

Finally, overpopulation within an aquarium is another potential cause behind aggressive outbursts between different species.

Some fish react when they feel cramped or uncomfortable due to being surrounded by too many male guppies in such close quarters.

How Many Mollies and Guppies in a 10-Gallon Tank?

You should put up to five mollies and guppies in a 10-gallon tank. As both species are active swimmers, they need plenty of space to move around freely, so overcrowding should be avoided at all costs.

It’s best to stock your aquarium with only one male molly, two female mollies, and two or three guppies.

This will ensure enough swimming space for all the fish in the tank and minimize potential conflicts.

Additionally, providing adequate shelter for both guppies and mollies species is important, as this helps reduce stress levels and create a safe environment where they can hide from predators or aggressive tank mates.

How Many Guppies and Mollies in a 20-Gallon Tank?

You can comfortably house up to ten adult mollies and guppies in a 20-gallon tank.

However, it’s important to remember that overcrowding should still be avoided as this often leads to aggression between the adult fish or increased stress levels.

It’s best to stock your community tank with up to two male mollies, four female fish, and three guppies.

This will provide ample space for these active swimmers to move around freely and reduce the risk of territorial behavior or other conflicts between tank mates.

Will Guppies and Mollies Live Together Peacefully?

Aquarists love tropical fish because of their dynamic and lively colors and how simple they are to look after.

Many aquarists may be curious whether guppies and mollies can live together in the same tank – indeed, these species make great roommates!

Most Popular Types of Mollies Fish

They share similar temperaments, diet requirements, and optimal water conditions for comfortable cohabitation.

However, certain aspects of their environment must be considered for peaceful and prosperous integration.

For example, adequate space should be provided to ensure plenty of room for each fish to swim freely without fear of aggression from other tank mates.

This can help reduce the risk of territorial behavior or competition for resources.

Additionally, as both species are active swimmers and require specific temperatures for optimal health, the aquarium must be adequately heated and maintained at a suitable water temperature for both species.

What is Peaceful Fish that Can Live with Mollies and Guppies?

Mollies and guppies make great tank mates for various other tropical fish. Some suitable species that can live peacefully alongside mollies and guppies include:

Molly and Guppy Tank Mates Fish Species List:

  • Angelfish
  • Tetras
  • Catfish
  • Platies
  • Barbs
  • Corydoras
  • Swordtails
  • Rainbows

It’s important to remember that when selecting tank mates for mollies and guppies, you should carefully assess the temperament of all potential fish and ensure they are compatible.

Ideally, potential tank mates should have similar Guppy Temperament Guppies and mollies prefer the same conditions in terms of temperature, pH level, and diet.

Additionally, there must be enough room for all tank mates to swim freely without fear of aggression from other fish.

By following these simple guidelines, you can ensure that mollies and guppies have an ideal environment where they can live peacefully and harmoniously alongside other tropical fish.

With this information in mind, you should be well on building a beautiful community aquarium full of vibrant life and activity. Good luck, fish keepers!


In conclusion, mollies and guppies can live together peacefully if certain conditions are met. The size of the tank, levels of aggression, species mix, hygiene, and feeding schedule should all be considered when housing these two fish together. Although they have some differences, mollies and guppies can coexist happily with some research and preparation from their owner. Just remember to keep an eye out for any bullying or signs of aggression – if any arise, take steps to resolve the issue as soon as possible. With proper care and attention, your aquarium should be a peaceful haven for both fish species!

You might also like

About Me

I am the founder of, a devoted wife and mother, and an avid fish enthusiast. My aim is to assist fellow fish lovers worldwide in understanding how to properly care for and breed their pet fish.

Recent Posts

Stay Updated

Get outdoor trends, data, new products, and tips delivered to your inbox.

error: Content is protected !!
Scroll to Top