How Many Guppies Should Be Kept Together

Guppies are popular because they are easy to care for and have bright colors. Even though guppies are pretty, if the male-to-female ratio isn’t watched, they can cause problems for aquarists. To make sure you’re keeping your guppies happy, here’s how many guppies you should keep together, as well as other frequently asked questions!

How Many Male And Female Guppies Should You Have?

Guppies should be kept in tanks in a ratio of 1:3, which means there should be 3 females for every male. This is because if more male fish are in the aquarium, they will constantly chase the smaller number of female fish, stressing them out.

Female guppies who experience stress will have a weakened immune system, which increases their risk of being sick and probably results in mortality. Therefore, having more female guppies than male guppies is recommended while setting up your aquarium.

To ensure the male guppies don’t end up fighting, it’s important to figure out the right ratio. This will also give the female guppies a chance to rest and give pregnant guppies a chance to carry their babies to term without having to worry about their male counterparts all the time.

As the number of guppies in your tank grows, you can increase the number of males to females. For example, 5 male guppies and 15 female guppies in an aquarium, or 20 male guppies and 60 female guppies in the same tank.

How Many Male Guppies Should Be Kept Together?

The minimum recommended male guppies to be kept together would be 6. This is not a number picked at random; it is based on what has been seen and tried. If there are fewer than six males, say three, the power balance will be off, and two males will attack the third.

In this case, it’s not the attacks themselves that are a problem, but how often they happen. The victim will be under a lot of stress, weakening their immune system and making them more likely to get sick or catch an infection. Not only that, but frequent attacks will hurt your fish and make it more likely to get an infection that will kill it.

The same is true for 4 and 5 guppies, but things will change as the number of guppies grows. If more than six males are in one tank, they will likely only go after the same fish. The males will instead attack each other at random.

How Many Fancy Guppies Should Be Kept Together?

Fancy guppies should be kept in a ratio of 1:3. The same rules apply; if there are too few females in the tank, males will harass them constantly. You should also remember that some fancy guppies can be aggressive, so choosing the right combination of males and females is important to ensure that everyone is comfortable and happy.

Why Are Your Guppies Grouping Together?

It’s common for guppies to group, or “school,” in one area of the aquarium. This behavior allows them to show protection and safety in numbers. It also helps guppies communicate with each other and allows them to find food more easily.

If your guppies are grouping together too much, it could be a sign of overcrowding or an aggressive tank mate. To solve this problem, you should add more plants and other decorations to the tank to provide them with hiding places. You can also increase the water temperature to make it easier for them to swim around and explore different areas.

Ensure your aquarium has enough space for all your guppies to school together without overcrowding each other. The ideal tank size for guppies is at least 5 gallons minimum for 2-3 fish and should be filled with plenty of hiding places and decorations. This will help ensure that your fish are comfortable and have plenty of room to move around without worrying about being attacked or harassed by other fish. 

guppy fish isolated on white background

Can You Keep One Guppy On Its Own?

If you want your guppy fish to be healthy and happy, you shouldn’t keep it alone. Guppies are social fish that do better when kept with other fish, whether of the same breed or not. If they are kept alone, they won’t do as well.

You can keep males and females together or keep your guppy fish with other fish that get along with them. It’s essential to research what other fish do well with guppies before adding them to your tank. When you decide to add another guppy, make sure they are of similar size and age so they can get along better.  

Ultimately, the number of guppies you keep together should depend on the tank size, the number of males and females, and the fish you have. Keeping a ratio of 1:3 is always recommended for regular guppies. 

How To Decide How Many Guppies You Should Keep

Before you add any guppies to your tank, it’s important to decide how many you should keep. Here are five steps to help you determine the ideal number of guppies in your tank.

1. Consider Your Tank Size

The size of your tank is the most important factor when determining how many guppies to keep. Ideally, you should have at least 5 gallons minimum for 2-3 fish you plan on keeping. This means that if you have a 10-gallon tank, you should limit the number of guppies to 6 or fewer.

2. Look at Your Filter 

Ensure your filter is up to the task to keep your guppy tank clean and healthy. If it’s not powerful enough for the number of fish you have, you may need to consider getting a larger filter or reducing the population in your tank.

3. Assess Your Budget

The amount of money you will spend on guppy care will also determine how many fish you should keep. If you don’t plan on investing too much into your guppies, consider keeping fewer fish so that you can provide them with high-quality care.

4. Think About Maintenance

Keeping guppies can be a lot of work, and the number of guppies will determine how much work you need to do to keep your tank clean. If you’re not willing or able to dedicate much time to tank maintenance, you should consider keeping fewer guppies.

5. Consider Your Goals

Lastly, think about your goals for the tank and how many fish you need to reach them. If you want a large school of guppies in your tank, you’ll need more than if you just wanted two or three fish.


Can You Keep Two Female Guppies Together?

Your guppy fish tank can definitely keep two female guppies together. The only problem with keeping only female guppies in your guppy fish tank is that females are less colorful and bright than males.

Can You Keep 3 Male Guppies Together?

Keep male guppy fish in groups of at least six. One of the most important things you can do to keep a school of male guppies from getting into trouble is to keep them in a big enough group.

Can You Keep 4 Male Guppies Together?

Yes, you can keep four male guppies together in a tank. However, keeping at least six male guppies in a tank is recommended so they have plenty of room to swim and hide, and they will be less likely to fight with each other. 

Do Guppies Need to Be in Groups?

Guppies like to be with other fish, so if you want them to have the best life possible, they must be in an aquarium with other fish. They are fish that swim in groups, so they don’t do well alone. They can be kept with or without other fish of the same species as long as the other fish aren’t too big or mean.

Can You Put Different Types of Guppies Together?

Yes. If you want a more varied tank, this is the best choice. There are almost 300 species of guppies, and many subspecies come in a wide range of colors and patterns.

Can Different Types of Guppies Breed?

Yes, guppies of different types can have babies. For example, endler guppies and fancy guppies can have babies together. But the impregnation might not work every time. Inbreeding can cause genetic changes that hurt the new strain’s ability to live long and make it more likely to get sick.

Can You Mix Guppies with Other Fish?

Guppies are friendly, peaceful fish that get along well with many other peaceful freshwater fish of the same size. Guppies get along well with swordtails, mollies, platies, Cory catfish, and other fish.


Guppies are a great addition to any aquarium, and the number of guppies you should keep depends on several factors. It’s essential to consider the space available in your aquarium, the types of guppies you’re keeping, and their behavior. Don’t forget the 1:3 ratio in keeping male and female guppies. This way,  you can ensure your guppies are happy and healthy in their new home. 

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