Skip to Content

How Many Guppies in a 10 Gallon Tank? (Quick Answers)

A 10-gallon tank should be the perfect size for a colony of guppies. Guppies don’t need plenty of space to swim around and eat. Additionally, a 10-gallon tank is large enough to hold several guppies, which will keep you entertained for hours on end. 

But how many guppies are in that tank? It’s time to find out.

How many guppies in a 10 gallon tank?

A good rule of thumb would be one guppy per gallon of water. There can be no more than ten guppies in a 10-gallon aquarium. However, at least five guppies are recommended for a tank of this size. In a ten-gallon aquarium, the ratio of males to females should be 2:3.

Bear with us and find out how many guppies of the following types you can keep in your 10 gallon tank.

Fancy guppies:

On the market, there are a variety of fancy guppies to choose from. Fancy guppies are typically more colorful than regular guppies and can be more difficult to care for. They also require more space. So, a 10 gallon tank can hold 5-7 fancy guppies. 

Endler guppies:

Endler guppies are a popular type of fancy guppy in the aquarium industry. They’re stunning fish that make excellent showpieces. In a 10-gallon tank, you can fit 12 Endler Guppies. 

Endler Guppies, on the other hand, are not always as playful and cute as other guppy varieties due to their large size.

How many male and female guppies to put in a 10 gallon tank?

Generally speaking, it is best to have a 2:3 male to female ratio in a tank of ten gallons or more. That means there should be two of the same gender for every three guppies. 

An overcrowded tank can become territorial and aggressive, while a tank with too many males will have poor water quality and cause the fish to be stressed.

Male guppies:

In a ten-gallon tank, one male guppy is usually enough to keep up with two females. As a result, a ten-gallon tank should have at least four male guppies, according to the ratio. Male guppies are more territorial than females. 

So, if you have more than four males in your tank, there’s a chance they’ll start fighting.

Female guppies:

So, a 10-gallon tank can hold 6 female guppies. However, it is best to keep two female guppies in with each male guppy as a general rule. This will prevent overpopulation and boring fighting among the males.

Can guppies live in a 10 gallon tank?

Guppies can live happily in a ten-gallon tank if the water is clean and fresh. In addition, a good variety of live foods should be provided in the tank. Diet Or food, such as shrimp pellets, river shrimps, and bloodworms, is included in most aquariums. 

Guppies can live in a 10-gallon tank for a variety of reasons.

Guppies are small in size:

Guppies can usually be kept in ten-gallon tanks. Because they don’t grow quickly, you can keep them in a small tank and observe how they interact with one another and their surroundings.

They can, however, reach a maximum length of 2 or 3 inches. Because guppies are good foragers and require proper nutrition, it is critical to keep plenty of live foods in the tank.

They are active and inquisitive:

Guppies will be more active in a ten-gallon tank. As they explore their surroundings, they will be more active. Further, they are very inquisitive creatures who love to dart around the tank, exploring everything. 

They are therefore great pets for those who enjoy watching fish interact with each other.

Guppies are tropical fish:

The ten-gallon tanks are usually equipped with a heater and a filter. As a result, guppies living in these tanks will be at ease at any time of year. Because tropical fish can withstand a lot of heat. Furthermore, there are no restrictions on how much water you can give them. 

For their needs, ten gallons is more than enough. Filtration and temperature control are provided by a filter and heater in ten-gallon tanks.

How many of these fishes with guppies can live in a 10 gallon tank?

Guppies and other small tropical fish can usually be kept in ten-gallon tanks. If you want to keep more than one type of fish, keep in mind that you’ll need a lot of live food in the tank.

Guppies and neon tetras:

Guppies and Neon Tetras should be kept in a 2:3 ratio. So, you can have two guppies and three tetras in a ten-gallon tank at the same time. 2 guppies will consume 4 gallons of water, while 3 tetras will consume the remaining water. 

Guppies and betta:

Betta fish are very active and require a large amount of space to swim in. If you have a guppy friend, they’ll need their tank, which should be at least 10 gallons. The Guppies to Betta ratio should be 1:1. You can only have 5 guppies and 5 betta fish in a 10-gallon tank.

Guppies and mollies:

Guppies will eat mollies’ pellets because they are bottom feeders. Mollies are larger than guppies, so you can only have three in a 10-gallon tank. You can keep two mollies and two guppies in a 10-gallon fish tank if you want to keep them together.

Guppies and shrimps:

Guppies and shrimp get along fine, but the rule of thumb is 5-6 shrimp to 1 gallon of guppies. So, you can have up to 25 shrimp and 2 to 3 guppies in a 10-gallon tank. The rule of thumb, however, does not imply that you must have the same number in an equal ratio. 

If you want more shrimp, simply add them to the tank, making sure there are enough holes to prevent them from being crushed.

Guppies and corydoras:

Corydoras are aggressive and will pounce on other fish in the tank if they feel threatened. If you want to keep corydoras and guppies together, the ratio should be 1:1. Two corys and two guppies are the maximum numbers of fish that can be kept in a 10-gallon tank. 

While they can live happily together in a smaller tank, large guppies must be avoided if corys are kept together.

What fish can live with guppies in a 10 gallon tank?

In a 10-gallon tank, there are a few fish that can coexist with guppies. Betta, mollies, shrimps, Swordtails, Harlequin Rasboras, Cardinal Tetra, and corydoras are some of the fish that can get along with guppies. 

You’ll need to make sure there’s enough room in your tank for all of the fish so they don’t fight unnecessarily.


Betta fish are small and can fit into a 10-gallon tank with ease. They will eat guppies, so make sure to provide enough food for both species if you want to keep them together. Bettas enjoy hiding places and can be quite active, so make sure there is enough room for them to play.


Guppies will eat mollies’ pellets because they are bottom feeders. Mollies get along with the other fish in the tank, but if they feel threatened, they may strike on the guppies. They get along well with other small fish and can easily be housed in a smaller tank.


Shrimps are simple to feed and will eat almost anything you put in the tank. They like to hide, so make sure there are plenty of covers for them to hide in. Shrimps and guppies can easily compete for food, so make sure to feed them separately.


Swordtails are fast swimmers who can easily keep up with guppies. They also like to hide in crevices, so make sure there are enough of them in the tank. Swordtails can coexist with guppies, but if they feel threatened, they may nip at them.

Harlequin Rasboras:

Another small fish that gets along with guppies is the Harlequin Rasbora. They get along well with other fish and prefer to hide in places where they are safe from other fish. The only disadvantage of having harlequin rasboras is that they have a proclivity for breeding.

Cardinal Tetra:

Cardinal Tetras are a species of freshwater aquarium fish that get along well with guppies. Guppies are also a suitable home for Cardinal Tetras. They are peaceful fish that can coexist peacefully with the other species in the tank. 

Because cardinal tetras do not like to swim in water that is too cold, you will need to heat your aquarium if you live in an area where the average temperature falls below 68 degrees Fahrenheit.

Final Thoughts

In general, a 10-gallon tank can accommodate 5 to 10 guppies. A two-to-three ratio of males to females is optimal. Because guppies don’t grow very large, a 10-gallon tank is ideal for them. The benefit of guppies is that they are compatible with other fish such as bettas and mollies.