A 40 gallon breeder tank dimensions are specific and different from others. The base of other regular 40 gallon tanks is more rectangular, however, the bottom of breeder tanks is more square. These tanks are specially designed for breeders with a view to easily access their fish because of the lower profile.

I’ll show you an image and a video here that shows immediately the various dimensions of a 40 gallon breeder tank. You may wonder why anyone would want to own a 40 breeder if it’s an option for you and what type of fish you are able to keep in the 40-gallon breeder tank.

Let’s first check out a few of the dimensions!

**40 gallon breeder tank dimensions**

Some rough guidelines are provided by our aquarium experts below as to what to expect when looking at different aquariums and full vs empty weight.

The aquarium weights are simply an estimate due to the type of water, the thickness of glass, and the amount of rock all affect the calculations of weight.

If we measure a gallon of fresh water at a particular gravity of 1.000 weighs 8.34lbs. 1-gallon water 8.34lbs times the particular gravity of say 1.025 equals 8.5485lbs (8.43 x 1.025 = 8.5485).

The weight of the water will increase in direct proportion to the weight of the salt which is dissolved in the water. 1 gallon saltwater at 1.025 is equal to 8.54 lbs.

**What is the length and width of a 40 gallon tank?**

Aquariums are available in so many sizes. It starts from as small as 2.5 gallons to as large as 180 gallons or more.

SMALL TANKS | |||

Tank Size | L x W x H | Empty Weight | Filled Weight |

2 1/2 gallon | 12″ x 6″ x 8″ | 3 lbs | 27 lbs |

5 gallon | 16″ x 8″ x 10″ | 7 lbs | 62 lbs |

10 gallon “Leader” | 20″ x 10″ x 12″ | 11 lbs | 111 lbs |

15 gallon | 24″ x 12″ x 12″ | 21 lbs | 170 lbs |

15 gallon High | 20″ x 10″ x 18″ | 22 lbs | 170 lbs |

MID-SIZED TANKS | |||

Tank Size | L x W x H | Empty Weight | Filled Weight |

20 gallon High | 24″ x 12″ x 16″ | 25 lbs | 225 lbs |

20 gallon Long | 30″ x 12″ x 12″ | 25 lbs | 225 lbs |

25 gallon | 24″ x 12″ x 20″ | 32 lbs | 282 lbs |

29 gallon | 30″ x 12″ x 18″ | 40 lbs | 330 lbs |

30-gallon Breeder | 36″ x 18″ x 12″ | 48 lbs | 348 lbs |

40-gallon Breeder | 36″ x 18″ x 16″ | 58 lbs | 458 lbs |

40 gallon Long | 48″ x 12″ x 16″ | 55 lbs | 455 lbs |

LARGE TANKS | |||

Tank Size | L x W x H | Empty Weight | Filled Weight |

50 gallon | 36″ x 18″ x 19″ | 100 lbs | 600 lbs |

55 gallon | 48″ x 13″ x 21″ | 78 lbs | 625 lbs |

65 gallon | 36″ x 18″ x 24″ | 126 lbs | 772 lbs |

75 gallon | 48″ x 18″ x 21″ | 140 lbs | 850 lbs |

90 gallon | 48″ x 18″ x 24″ | 160 lbs | 1050 lbs |

125 gallon | 72″ x 18″ x 21″ | 206 lbs | 1206 lbs |

150 gallon | 72″ x 18″ x 28″ | 338 lbs | 1838 lbs |

180 Gallon | 72″ x 24″ x 25″ | 430 lbs | 1870 lbs |

225 Gallon | 72″ x 27.5″ x 27.5″ | 358 lbs | 2158 lbs |

**40 gallon breeder tank dimensions compared to other 40 gallon tanks**

If someone is thinking about a 40-gallon breeder tank, they’re thinking about a tank that is about 16” high and not that wide. The exact measurements of this type of tank might differ depending on what manufacturer you’re searching for.

Look carefully at the** image below**, the height of 40 Breeders and 40 Long are equal.

However, when you’re handling fish then the 40 Breeder is actually more convenient. When your fish are fast and agile catching them in a long tank can be a struggle.

Apart from these three varieties, there’s also a tank known as 40 Cube. All the sides of 40 Cube are around 20 ¾ “ to end up with 40-gallon tanks. To adjust the layout of your tank and to handle fish, the lower profile of a 40-gallon breeder tank makes it convenient for the fishkeeper.

One of the major reasons why these dimensions are known as a breeder tank is the ease of catching fish.

**Why would you want a 40 Breeder aquarium**

Having a 40 Breeder tank has a lot of benefits. The bigger footprint in combination with the low height makes it easy to handle, fry, and catch fish.

However, there are a lot of people among us who own 40 Breeder tanks without any intention to breed any kind of fish. Because this has a lot of other benefits.

Firstly, if you look at the front of your aquarium, the tank seems very deep. Roughly you have got 18” of space to fill with ornaments, rocks, wood, or plants. This is much more than the average 12” of the area you have got with any “regular” 40-gallon tank.

You can get creative in a true sense. The space offers sufficient room for various layers, pieces of driftwood, or larger rocks, or additional interest.

Due to this reason, 40 breeders are highly popular among aquascapers or fish keepers. Aquascapers are those creative people who create beautiful and attractive aquarium landscapes underwater.

**Are breeder tanks good for turtles?**

Also, there is another group of people who are very happy with 40 gallon breeder tank dimensions are turtle keepers.

I’ve recently got 5 musk turtles myself, but these varieties of turtles aren’t the best swimmers. Alternatively, they like to walk on the bottom of the aquarium and occasionally swim up for air.

It gets harder for your turtles to swim up with a very tall aquarium. This is the reason why so many turtle keepers prefer a lower tank height.

**FAQs**

**Where Can I Buy a Breeder Tank?**

You can buy a breeder tank from fish stores as well as online through the same fish stores or platforms like Amazon. You can also buy these tanks locally on the local used pet supply pages.

**What’s the difference between a 40 gallon and a 40 gallon breeder?**

The main difference between a regular tank and a breeder tank that contains the exact amount of gallons of water is the regular tanks are taller.

Breeder tanks are built to provide a lot of surface area, so it is lower profile than a regular tank.

**What size is a 40 gallon breeder tank?**

**What size is a 40 gallon breeder tank?**

40 gallon breeder tank dimensions:

Tank Size | L x W x H | Empty Weight | Filled Weight |

40-gallon Breeder | 36″ x 18″ x 16″ | 58 lbs | 458 lbs |

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