Molly Platy Fish – The Very Interesting Difference Between These Two Fishes

What is molly platy fish?

It is a great diversity of exotic tropical fish that makes the aquarium world so appealing to tourists; amongst these fish, the most beautiful are often the community fish that live in peaceful communities.

As molly platy fish are not members of the same breed, it is very difficult to differentiate between them simply because they belong to the same family of live breeders.

How Do Mollies and Platies Differ?

Molly and Platy are members of the same family of live breeders, so it can be difficult to perceive the differences between them because they are so similar and they belong to the same family.

They differ largely in terms of physical characteristics, which is one of the biggest differences they have.

The Mollies differ greatly from the Platies in the way they are sleeker and have a mouth that is inclined up towards the sky.

Also, there is a difference in the way they must be housed, their diets, and some of the ways they produce fry as well.

Although they are very different in appearance and have different needs, they both have something in common, they are so easy to care for.

The simplicity and the ease of use of both of these products make them ideal for any aquarist who is just starting out.

The best way to fully understand the differences between these two species, and the importance of each, is to take a closer look at them.

If you were to analyze them side-by-side, you might be surprised at how much they have in common, but also what they don’t.

First, let’s explore these two species of Molly and Platy fish!


Molly Fish
Molly Fish

This species of Molly is also known as poecilia sphenops, sometimes known as a common Molly or short-finned Molly, is a species of fresh water fish. 

Historically Mollienesia was the original genus classification for Molliees and now they are classified as Poecilia, for their new genus. 

Their natural habitat is the shallow brackish waters and coastal waters of Mexico, and they have a silvery color when they are in the wild.

Mollies found in Mexico are known from their northern areas in South America to those found in southern parts of the United States. 

In contrast, sailfin Mollies are native to the Gulf of Mexico and the South-East coasts of the United States. Sailfins are native to the area of Yucatan in southeast Mexico and are also known as Yucatan Molly or P. velifera.

When the Molly was introduced into the market in 1899, it was intended for use by fishing enthusiasts. However, it has become immensely popular since its release. 

Unlike their cousins the Poecilia, Mollies tend to be more aggressive than their cousins the guppy and the platy. The Molly family includes many hybrid species that can be distinguished by the sizes of their fins and their colors. 

These can also be divided into three main types based on their short or long fins:

The Sailfin Molly Poecilia latipinnas are native to the Pacific Ocean

Poecilia sphenops is commonly known as the common molly

During the last century, it has been a difficult task to breed the Mexican Sailfin Molly Poecilia velifera due to its breeding difficulty, as well as the fact that tank bred Mexican Sailfins will not display the elongated dorsal fin.

Breeders of Molly fish have created a variety of marvelous and unique color variety and shape variations that include:

It is a popular breed of Mollie due to its extraordinary hardiness, and because of its low breeding capacity, these Mollies are completely black.

It has large black eyes, which stand out against the completely white body. White Mollies are classified as the largest mollies in the world.

A gold Molly has a mirror-like shine, with a 24 karat or gold finish that hobbyists love.

A genetic defect causes balloon moles to have an abnormally curved spine, giving them their unique appearance and a unique character.

This molly is known as a Lyretail Molly, which means that its caudal fins have extended at top and bottom. Interestingly, this fin extends into the middle of the tail in a way that is quite similar to a lyre.

There is nothing more eye-catching than a Dalmatian Molly. It is a stunning white with prominent jet black spots all over its body.

These are short-finned mollies with attractive dusty gold and black pattern and are of the short-finned variety.

This species of Molly is distinguished by bright orange and white coloration that extends onto its dorsal fin as well as its sides.

There is nothing quite like a beauty like a Harlequin Sailfin Molly. This Molly has an orange color with gold, white and black patterns on its body and fins.

Mollies with marbled stripes are known as Marblelyretail Mollies as they show an exquisite pattern of mixed black and white stripes on both the body and fins.


Platy Fish
Platy Fish

This fish is a living specimen of the genus Xiphophorus, and it also belongs to the family of fishes known as the Poeciliidae, which contains live-bearing species. 

From the Greek word for ‘flat’ or ‘broad’ comes the name Platy, which is derived from an older classification, Platypoecilus.

In Central America and south of Mexico, plateys are indigenous to the east coast and are found in the southern parts of their range. 

In the past, there have been a number of hybrids of the Southern (Xiphophorus maculatus) and Variable Platy (Xiphophorus variatus), and often the rare Swordtail Platy (Xiphophorus xiphidium) has been introduced into the mix to produce a larger variety of fin shapes.

It is the combination of these three species that give rise to what we now call Platy species, and all of these species. Both the Southern and Variable Platy show a spectrum of colors. 

Their sizes are both relatively short and stocky, as well as their colors. and exhibit a variety of colors. 

Most of the species have the colors yellow, red, green, and blue, which they are thought to have acquired as an adaptation to their natural habitat.

Southern Platy dogs are the descendants of several popular breeds which include:

  • Half Moon
  • Coral
  • Comet
  • Salt and pepper
  • Moon
  • Blue mirror
  • Bleeding Heart Platy
  • Popular breeds that originate from the Variable Platy are:
  • Redtail
  • Yellowtail
  • Sunset
  • Rainbow
  • Hawaii
  • Marigold

Different Types Of Tank Care Of Molly Platy Fish

If you are a fish owner, how can you tell which fish need what when it comes to tank care?

It is fortunate that their needs are very similar, and even if they had to live in the same house, they could share one.

If you are going to have a Molly in your tank, make sure it has a sandy substrate, at least 10 gallons, and is able to swim around and explore.

As well as the plants they should have in their tank, there are also other details beyond these, which are important, such as the water hardness, pH, and the temperature.

The Mollies are mostly attracted to tall trees, and they like to hide in caves and crevices as they like to explore them.

There are many details to consider when finding the right conditions and maintaining your tank’s water, but a good ballpark to aim for is 72 to 78 degrees, a hardness level between 20 to 30 KH and a pH level between 6.7 and 8.5.

In contrast, platies are very resistant to many types of environmental factors, and can survive in a wide range of conditions.

This species prefers warm water with a gravelly substrate and a plant-rich environment, both of which are essential for them, and also for the comfort and health of their potential fry.

Ideally, when using Platies, their water temperature should be at or below 70 degrees Fahrenheit, their water hardness should range from 10 to 28 degree Haemoglobins (dGH), and their pH level should be around 6.8 to 8.0.

It is also recommended that they have their water changed regularly – around one and a half percent every two weeks.

Dietary Differences

The difference between diets
The difference between diets

Mollies and Platies are two species of frogs that can be kept together in one tank as long as they are given the appropriate diets.

Mollies are omnivores, that is, they don’t necessarily discriminate when it comes to what they eat.

They feed mainly on plants, algae, occasionally small invertebrates, with the occasional small fish in their natural habitat.

If you keep them in aquariums, you can feed them similar things, and it is recommended that you feed them tiny amounts twice a day to maintain their health.

The amount that is good for them should be a forkful every two minutes.

A lot of the diets of platies, which are also omnivores, may sound familiar to you.

However, more plants should be provided than meat in the case of platies.

It may be a good idea to give the bloodworms, brine shrimp, or tubifex once or twice a week to give them a treat.

I believe that it is advisable to feed them several times a day, but only give them enough food that they will be able to consume in three minutes.

Behavioral Patterns

As we move along, let’s take a look at behaviors.

In order for the tankmates to get along with each other effectively, you have to make sure that they are compatible with one another.

You can either house them together or separately, regardless, it shouldn’t be a big issue.

A Mollie is generally regarded as a peaceful, non-aggressive species of fish, and will not show aggressive behavior unless it is overcrowded, or if it has aggressive tankmates.

A typical characteristic about them is that they are very social and enjoy living in a small group.

Observing them closely will reveal to you that they have incredibly distinct personalities as well.

There is no doubt that you will fall in love with these social creatures.

In many ways, they are similar to platies.

The fish prefer to live in small social groups of up to five members, are very active and playful, as well as peaceful.

In order for this system to work, you need to keep at least one to two females whenever you keep males.

As Platies are very active breeders, they may harass either a female for attention or this will also lead to stress and exhaustion for the females as the males are such aggressive breeders.

While they are not exploring or jumping, they often group up and can be found in a shoal when they are not exploring or jumping.

It’s a good idea to cover the tank of a jumping fish because of their tendency to jump.

Raising Platies And Mollies

Mollies and Platies are similar in many ways.
Mollies and Platies are similar in many ways.

Mollies and Platies have completely different characteristics and you may even be wondering if you can crossbreed them together, and the answer to this is no.

The Mollie and the Platy are fundamentally the same in many ways. However, if you want to crossbreed between two species, they must be very closely related to one another, which Mollies and Platies are not.

It is possible to breed them within their own species, however.

If you’re looking to breed fish, platies are probably the easiest animals to do this with, since they don’t require any special changes to their tank or any additional care.

There is pretty much a 90% chance you will have fry as long as you have male and female platy in your tank.

As a side note, Mollies, on the other hand, are almost the polar opposite, as they need to have perfect tank conditions in order to reproduce.

Even so, it shouldn’t be assumed that they are hard to breed.

You should check them out if you are a beginner.

It is recommended that mollies be placed in a breeding tank at a temperature not higher than 78 degrees Fahrenheit but on the warmer side.

Mollies perform a courting display that you can observe during molly season, and when the female Molly is ready, she will permit the male to fertilize the eggs.

The females have a live-bearing capacity, so they will give birth to up to 100 flies 35 to 45 days after fertilization.

Illnesses Commonly Encountered

In terms of sicknesses that can affect your fish, I know there are a few common illnesses that can happen to them but are there any illnesses that will affect your Platies and Mollies specifically?

In addition to a couple of common diseases, you should be vigilant against, such as fin rot and ich, there are a few more diseases that can affect Mollies and livebearers in particular.

Among Mollies, there is a possibility that they will be diagnosed with Swim Bladder Disease. You will notice this when they swim upside down or remain motionless for long periods of time.

Because of this, you will be able to see your fish swimming upright.

In addition, a swimmer’s bladder disease causes the fish to suffer from abnormalities that make it difficult to swim, and it can even cause the fish to drown.

If left untreated, Swim Bladder Disease is a very serious condition that can lead to death, and there are several factors that can cause it.

Various things can cause the fish to develop this condition, such as blood clots, blockage of its swim bladder, and bacteria in its tank.

As well to Mouth Fungus, which can affect any living bearer, there is also Bowel Fungus that needs to be watched out for.

Bacteria attacking the mouth are what cause it. The particular bacteria causing it specifically affects the mouth.

Bacterial growth causes a cotton-like growth that eats the fish’s jaws away, causing the fish to have difficulty breathing because it can no longer work normally.

Video About The Differences Between Mollies and Platies Fish


Is it better to feed platies and mollies live food or flake food?

They eat a mixture consisting of high-quality flakes and high-quality flakes. Occasionally they will enjoy meaty treats like frozen bloodworms, mollies.

A diet that includes vegetables and high-quality flakes is preferred. Shelled peas, cucumber bites, and zucchini pieces are among the vegetables Mollies enjoy eating.

Shedded carrots are another favorite of Mollies. They can also consume meaty treats once or twice a week to ensure a balanced, nutritional diet. The most commonly eaten bloodworms are freeze-dried bloodworms.

They are nutritionally valuable. While some nutrients are compromised during the freeze-drying and packaging process, they are not the majority of the nutrients.

What are the chances of Platies and Mollies surviving without a heater and filtration?

Your aquarium should have a heater if your room temperature is at least 4 degrees warmer than your desired aquarium temperature.

Healthy fish, especially platies and mollies, require filtration and aeration. Feed guppies, mollies, platies, swordtails, and other livebearers in good measure twice a day.

Similarly, you should clean your aquarium no more than once or twice a week by a 50% partial amount. It is vital that you follow these steps for your fish to flourish.

Mollies and Platties: Are they compatible?

You can keep Mollies and Platies together in the same tank if they have enough room. Mollies, however, prefer to be hidden, and as such they need the addition of plants and other decorations to create hiding places (for instance, plants and other decorations in a fish tank).

You should get Mollies and Platies with shorter fins if you have fin-nippers in your tank. Or else they’ll be attacked constantly by everyone who enjoys a good meal.

Their tanks must also be filled with oxygen. Their buoyancy means that they tend to live on the bottom of an aquarium and aren’t as buoyant as platyfish, who like to swim around near the top levels.

Mollies and Platies will get along as long as they have sufficient space, cover, and access to water.


The untrained eye finds it difficult to distinguish between Molly and Platy, and vice versa, especially when it comes to animals.

A microscope is necessary to capture the genetic differences and distinct gonopodium, so it is especially important to be aware of the specific colorations and sizes of the Platies and Mollies you own.

The following advice can always be sought from a forum or one of the experts if you are still uncertain by eye.

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