Are you trying to calculate how many guppies should be kept together in a fish tank? Want to know how many guppies can fit in your aquarium? Guppies are freshwater aquarium fish that can grow up to 2 inches. Guppies are prolific breeders and will suffer if you overcrowd your aquarium with too many guppies.

We’ve created a Guppy Tank Size Calculator below to calculate the number of guppies you can put in your aquarium.

## How Many Guppies Can Fit in a 10 Gallon Tank?

You can fit 7 guppies in a 10 gallon tank.Keep in mind, guppies breed easily. So be prepared to transfer your guppies to another aquarium when they start breeding.

## How Many Guppies Can Fit in a 3 Gallon Tank?

You can fit 2 guppies in a 3 gallon tank. However, it’s not advisable to house guppies in three gallon aquariums since they breed so easily. I recommend a minimum of 10 gallons for guppies when they start breeding. Be prepared to transfer your guppies to a larger aquarium when they start breeding.

## How Many Guppies Can Fit in a 5 Gallon Tank?

You can fit 3 guppies in a 5 gallon tank. I recommend a minimum of 10 gallons for guppies when they start breeding. Be prepared to transfer your guppies to a larger aquarium when they start breeding.

## How Many Guppies Can Fit in a 20 Gallon Tank?

You can fit 13 guppies in a 20 gallon aquarium. Keep in mind, guppies breed easily. I suggest starting off with less guppies so there is room for baby guppies in your 20 gallon tank.

## How Many Guppies Can Fit in a 29 Gallon Tank?

You can fit 19 guppies in a 29 gallon aquarium.

## How Many Guppies Can Fit in a 30 Gallon Tank?

You can fit 20 guppies in a 30 gallon aquarium.

## How Many Guppies Can Fit in a 55 Gallon Tank?

You can fit 37 guppies in a 55 gallon aquarium.

## How Many Guppies Can Fit in a 30 Litre Tank?

You can fit 5 guppies in a 30 litre tank.

## How Many Guppies Can Fit in a 60 Litre Tank?

You can fit 11 guppies in a 60 litre tank.

## What Size Tank Do You Need for 1 Guppy?

One guppy will need a minimum of 1.5 gallons or 5.7 litre per guppy. Even though that is their minimum requirements, I suggest housing guppies in at least a 10 gallon fish tank (38 litre).

## What Size Tank Do You Need for 2 Guppies?

For two adult guppies, you need at least at least a 3 gallon tank (12 litre). However, it’s not advisable to house guppies in three gallon aquariums since they breed so easily. I recommend at least a 10 gallon tank (38 litre) for 2 guppies.

## How Many Guppies Should Be Kept Together?

Guppies are social fish. They thrive when kept in a group. Ideally, you should keep a minimum of 4 guppies. If you are interested in breeding guppies, get 2 males and 2 females or 1 male and 3 females.

## How Many Guppies Can Fit In Your Aquarium?

Use the Guppy Tank Size calculator below to compute how many guppies can fit in your aquarium. Input the Aquarium size. Note: There are 2 calculators below, one is in gallons and the other one is in litres.

This calculator is for *Guppy only* fish tank. If you are creating a community tank with other fish, then you will need to make adjustments because you don’t want overcrowding in your fish tank.

## How Many Guppies and Platies Can Live in a 10 Gallon Tank?

In a 10 gallon tank, you can keep 2 platies and 4 guppies. Guppies and platies are good tank mates and will live happily together.

If you want your platies to breed, get 1 male platy and 1 female platy. For guppies, get 1 male guppy and 3 female guppies or 2 male guppies and 2 female guppies.

## How Many Guppies and Mollies Can Live in a 20 Gallon Tank?

You can have 3 mollies and 5 guppies in a 20 gallon tank. Guppies and mollies are good tank mates and will live peacefully with each other in the same tank.

If you want them to breed, get 1 male molly and 2 female mollies. For guppies to breed, get 2 male guppies and 3 female guppies or 1 male guppies and 4 female guppies.

## How Many Guppies and Swordtails Can Live in a 20 Gallon Tank?

In a 20 gallon tank, you can keep three swordtails and five guppies. Guppies and swordtails make excellent tank mates and can coexist peacefully in the same tank.

If you want them to breed, get 1 male swordtail and 2 female swordtails. For guppies to breed, get 2 male guppies and 3 female guppies or 1 male guppies and 4 female guppies.

## Table: How Many Guppies Can Fit in Your Aquarium (Gallons)

Aquarium Size in Gallons | Number of Guppies |

3 Gallons | 2 |

5 Gallons | 3 |

10 Gallons | 7 |

20 Gallons | 13 |

29 Gallons | 19 |

30 Gallons | 20 |

55 Gallons | 37 |

## Table: How Many Guppies Can Fit in Your Aquarium (Litre)

Aquarium Size in Litre | Number of Guppies |

15 Litre | 3 |

18 Litre | 3 |

20 Litre | 4 |

30 Litre | 5 |

40 Litre | 7 |

60 Litre | 11 |