Skip to Content

Platies vs. Swordtails (A Side-by-Side Comparison)

Platies vs. Swordtails (A Side-by-Side Comparison)

Share this post:

This post is written to the author's best knowledge and is not intended to be used in place of veterinary advice. In addition, this post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases.

Platies and swordtails are among the most popular fish species kept as pets. These species are an excellent choice for fish enthusiasts of all levels.

They’re known for their active behavior, stunning colors, and low-maintenance requirements. Although coming from the same family, they differ in characteristics and temperament.

In this article, we’ll compare platies vs swordtails, look into their compatibility, and focus on whether they can live and breed together. We’ll also discuss how to set up a suitable tank for both species.

Characteristics of Platies and Swordtails

Both species are active fish that add a lot of life and vibrancy to your home when kept as pets. Let’s take a look at their physical characteristics and behavior, highlighting their distinct personalities.

Physical Description

Platies are small fish that have a rounded body shape and a pointed snout. They also have a fan-shaped tail, and they come in several colors, including red, orange, blue, and yellow.

Swordtails, on the other hand, are slightly larger than platies. They got their name from the sword-like extensions on the bottom of their tail fins.

They can come in a variety of colors, including red, orange, black, and yellow, and often have spots or stripes.

Behavior and Temperament

Both species are active fish that like to explore and swim around in their tanks. They can also live peacefully with different tank mates.

However, both species can grow aggression toward other fish when stressed or threatened. Specifically, male fish may display aggressive behavior towards other males during mating season.

Breeding Swordtails and Platies

Platies and swordtails are both classified under the Peociliidae family. Most species under this family are known to be livebearers.

The males have modified anal fins called the gonopodium, which help them fertilize the eggs inside the female body.

After about 4–5 weeks of gestation, the female gives birth to fully-developed fry.

Although platies and swordtails belong to the same family, they may display different mating behavior.

Male platies are generally more docile and gentle compared to their swordtail counterparts. They try to attract the female’s attention by displaying their colorful fins.

Female platies may then become more comfortable and receptive toward males.

Swordtails, on the other hand, may display aggressive behavior, such as getting more territorial toward other males. They may also chase and nip at the female, while displaying their tails, to attract her attention.

However, female swordtails may ignore the courtship if they feel threatened by the untoward behavior.

Can You Breed Platies and Swordtails Together?

As both are members of the Poeciliidae family, interbreeding between the two species is possible. Keep in mind that doing this has its advantages and disadvantages.

One unique advantage of breeding two different species is producing offspring that display diverse genetic traits and physical characteristics that are different from both parent species.

However, inbreeding may also result in reduced genetic purity, and the offspring may not display traits from both parents at all. This can be challenging since a new species may have different care requirements.

Further, this can cause health problems such as genetic disorders, infertility, and weak immune systems.

If you decide to breed platies and swordtails together, there are a few steps you can keep in mind. First, ensure that both fishes are healthy and carry no diseases or parasites.

Secondly, you should provide a suitable environment for both species, including the water temperature, pH levels, tank size, and proper diet.

Then, you should also ensure that you have a manageable male-to-female ratio in the tank. With this, any fighting between males and overcrowding can be avoided.

Can Platies and Swordtails Live Together?

If you plan to set up a tank with platies and swordtails, there are several factors to keep in mind to ensure the health and well-being of your fish.

Tank Size

For small freshwater fish like platies and swordfish, keep a small group of 5–6 fish in a 10-gallon tank. However, if you intend to house both species together, provide a larger tank that allows at least 3 gallons of water per fish.

Water Conditions

As freshwater fish, both species prefer a water temperature of around 72–82°F (22–28°C). The ideal pH level is between 7.0 and 8.2, and they also thrive best with water hardness levels between 15–25 dGH.

It’s also necessary that the tank is kept clean and the water is tested regularly to keep the fish healthy.

Tank Mates

It’s essential to choose tank mates that have similar temperaments and behaviors with platies and swordtails. Some compatible tank mates for both species are guppies, mollies, and corydoras.

However, you should avoid mixing them with aggressive and larger species such as cichlids, which can cause them stress and harm. These fish are known for nipping and chasing other fish within their tanks.

Final Thoughts

Platies and swordtails are great choices for fish keepers due to their behavior and easy care requirements.

While they have distinct physical appearances, both species can interbreed and produce new offspring. Further, when housing both species together, it’s vital to provide adequate space for their well-being.

Regardless of your preference, meeting their requirements will ensure the health and happiness of your fish.

Share this post: