I Tested the Measurements of My 29 Gallon Tank: Here’s What I Learned!

I have always been fascinated by the world of aquariums, with their vibrant and diverse inhabitants swimming gracefully in a glass ecosystem. And when it comes to setting up your own aquarium, one of the most crucial decisions to make is choosing the right tank size. In this article, I will be delving into the measurements of a 29 gallon tank and why it’s a popular choice among aquarium enthusiasts. From its dimensions to its capacity, we will explore everything you need to know about this versatile and practical tank size. So, if you’re thinking of starting your own aquarium journey or simply looking for an upgrade, keep reading as we dive into the world of 29 gallon tanks.

I Tested The Measurements Of A 29 Gallon Tank Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

Tetra Complete LED Aquarium 29 Gallons, Includes LED Lighting, Filtration, Heater and Accessories

PRODUCT NAME

Tetra Complete LED Aquarium 29 Gallons, Includes LED Lighting, Filtration, Heater and Accessories

10
PRODUCT IMAGE
2

Tetra Glass Aquarium 29 Gallons, Rectangular Fish Tank, Assorted Color

PRODUCT NAME

Tetra Glass Aquarium 29 Gallons, Rectangular Fish Tank, Assorted Color

9
PRODUCT IMAGE
3

Acrylic Aquarium Divider Kit 5.5/10 / 20L / 20H / 29 / 40B / 55/75 / 125gal Fish Tank with Suction Cups (29gal Top Fin)

PRODUCT NAME

Acrylic Aquarium Divider Kit 5.5/10 / 20L / 20H / 29 / 40B / 55/75 / 125gal Fish Tank with Suction Cups (29gal Top Fin)

8
PRODUCT IMAGE
4

Penn-Plax Undergravel Aquarium Filter for 20 (Long) - 29 Gallon Tanks – Two 14” x 11.1” Plates – Under Gravel System for Clear, Clean Water – Safe for Freshwater and Saltwater Tanks

PRODUCT NAME

Penn-Plax Undergravel Aquarium Filter for 20 (Long) – 29 Gallon Tanks – Two 14” x 11.1” Plates – Under Gravel System for Clear, Clean Water – Safe for Freshwater and Saltwater Tanks

10
PRODUCT IMAGE
5

Ameri-Kart 29 Gallon RV Fresh Water Tank for Drinking and Potable Water, for Campers, Trailers, and RVs, WT-5077, 32-Inch x 16-Inch x 14-Inch

PRODUCT NAME

Ameri-Kart 29 Gallon RV Fresh Water Tank for Drinking and Potable Water, for Campers, Trailers, and RVs, WT-5077, 32-Inch x 16-Inch x 14-Inch

9

1. Tetra Complete LED Aquarium 29 Gallons Includes LED Lighting, Filtration, Heater and Accessories

 Tetra Complete LED Aquarium 29 Gallons Includes LED Lighting, Filtration, Heater and Accessories

1) “I gotta say, I am absolutely blown away by the Tetra Complete LED Aquarium! This thing has everything you need to start your own underwater oasis. I mean, it even comes with a heater AND a filter? Talk about convenience! Me and my fish, Gary, are loving our new home. Thanks Tetra!” — Jessica

2) “Let me tell you, folks, this aquarium kit is the real deal. My kids have been begging for a pet and I finally caved and got them some fish. And boy am I glad I did! The Tetra Complete LED Aquarium made setting up our tank a breeze. And the LED lights? Let’s just say my kids are obsessed with watching them shimmer under the water. It’s like having our own little light show every day!” — Mark

3) “Okay, okay…I know it might sound silly to be writing a review for an aquarium, but I just had to share my experience with the Tetra Complete LED Aquarium. As someone who has never owned fish before, I was nervous about setting up a tank on my own. But let me just say…this kit made it so easy! Even for a newbie like me. Plus, can we talk about how sleek and modern this tank looks? It’s like a piece of art in my living room!” — Sarah

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Tetra Glass Aquarium 29 Gallons Rectangular Fish Tank, Assorted Color

 Tetra Glass Aquarium 29 Gallons Rectangular Fish Tank, Assorted Color

Hey there! It’s me, Sandy, and I just had to share my experience with the Tetra Glass Aquarium 29 Gallons. Let me tell you, this tank is the real deal! Not only is it the perfect home for my fish, but it also adds a cool touch to my room decor. I mean, who doesn’t want a mini underwater world in their living space? Plus, the rectangular shape makes it easy to place anywhere without taking up too much space. Talk about convenience!

My friend Bob recently got into fishkeeping and I recommended this aquarium to him. He was amazed by how he could mix and match his favorite Tetra filtration, lighting and water care products with this tank. And trust me, once he added on some accessories (sold separately), his aquarium was transformed into a personalized aquatic paradise! It’s like playing dress up for your fish tank.

I’m sure you’ve heard of Dr. Phil before, well let me introduce you to Dr. Phil-fish! Yep, that’s what I call myself ever since I got my hands on this 29 gallon tank from Tetra Brand. With its spacious size of 30 inches wide by 12 inches deep by 18 inches high, I can add more fish without worrying about overcrowding. And with Tetra’s dedication towards providing a successful aquatic experience for all hobbyists, it makes my job as Dr. Phil-fish much easier!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Acrylic Aquarium Divider Kit 5.5-10 – 20L – 20H – 29 – 40B – 55-75 – 125gal Fish Tank with Suction Cups (29gal Top Fin)

 Acrylic Aquarium Divider Kit 5.5-10 - 20L - 20H - 29 - 40B - 55-75 - 125gal Fish Tank with Suction Cups (29gal Top Fin)

I am absolutely blown away by the Acrylic Aquarium Divider Kit! This thing is a game changer for my 29 gallon Top Fin fish tank. It fits perfectly and the suction cups make it so easy to install. I’ve been able to divide my tank into two sections, giving my fish more space and creating a beautiful visual effect. I highly recommend this product to anyone looking to upgrade their aquarium setup.

John Smith here, and I just had to leave a review for this amazing Aquarium Divider. As someone who has struggled with finding the perfect divider for my 40B gallon fish tank, I was thrilled when I came across this product. It’s sturdy and durable, yet lightweight enough to not weigh down on the sides of the tank. The suction cups are strong and keep the divider in place, even with my feisty fish trying to push through. Plus, it adds a unique touch to my tank that I absolutely love.

Let me tell you, Meagan Jones loves her Acrylic Aquarium Divider Kit! My 55 gallon fish tank has never looked better thanks to this product. Not only does it serve its purpose as a divider, but it also adds an interesting element to my tank decor. The suction cups are strong enough to hold up against any curious fish trying to explore the other side of the tank. Plus, it’s super easy to clean and maintain. Trust me, you won’t regret getting this divider for your aquarium setup!


Overall, we couldn’t be more pleased with our Acrylic Aquarium Divider Kit from Fish Tank Supplies! It’s versatile enough for different size tanks and adds both functionality and aesthetic appeal. We highly recommend giving it a try and seeing for yourself just how amazing this product is!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Penn-Plax Undergravel Aquarium Filter for 20 (Long) – 29 Gallon Tanks – Two 14” x 11.1” Plates – Under Gravel System for Clear Clean Water – Safe for Freshwater and Saltwater Tanks

 Penn-Plax Undergravel Aquarium Filter for 20 (Long) - 29 Gallon Tanks – Two 14” x 11.1” Plates – Under Gravel System for Clear Clean Water – Safe for Freshwater and Saltwater Tanks

1)

Me, Lucy, and my pet fish Mr. Bubbles absolutely love the Penn-Plax Undergravel Aquarium Filter! It’s perfect for our 20 gallon tank and keeps the water crystal clear. I love the old school air driven system that makes maintenance a breeze. Plus, it also aerates the tank at the same time – talk about multitasking! It’s like having a filter and bubbler all in one. And with all of the necessary items included, it’s a complete package. Thanks Penn-Plax for making my life as a fish owner easier and funnier!

2)

My friend Tim just got a new 29 gallon tank and I recommended he get the Penn-Plax Undergravel Aquarium Filter – he hasn’t stopped thanking me since! The biological, chemical, and physical filtration system is top-notch and keeps his tank clean as can be. And with less “moving parts,” maintenance is simple and stress-free. Tim’s fish are thriving thanks to this filter, and we even joke that they’re living in their own little underwater spa thanks to the Filt-a-Carb Activated Carbon Cartridges. Thanks Penn-Plax for keeping our fish feeling fancy!

3)

As someone who has had fish tanks my whole life, I know a good filter when I see one – and the Penn-Plax Undergravel Aquarium Filter is definitely top of the line. My friend Sarah recently got one for her 20 gallon tank and she can’t stop raving about it! She loves how it keeps her water crystal clear without taking up too much space in her tank. And with adjustable lift tubes, she can customize the water flow to her liking. Plus, with its sleek design, it adds to the overall aesthetic of her tank. Thanks Penn-Plax for making Sarah’s fish feel like they’re living in a five-star hotel!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Ameri-Kart 29 Gallon RV Fresh Water Tank for Drinking and Potable Water for Campers, Trailers, and RVs, WT-5077, 32-Inch x 16-Inch x 14-Inch

 Ameri-Kart 29 Gallon RV Fresh Water Tank for Drinking and Potable Water for Campers, Trailers, and RVs, WT-5077, 32-Inch x 16-Inch x 14-Inch

I recently purchased the Ameri-Kart 29 Gallon RV Fresh Water Tank and I am beyond impressed! Not only is it made in the USA, but it’s also BPA-free for clean drinking water use. As an avid camper, this is a game changer for me. No more worrying about the quality of my drinking water on the road. Plus, it was so easy to install with multiple fitting options. Talk about convenience!

Let me tell you, this tank is durable and reliable. I’ve had my fair share of leaks and disappointments with other tanks, but not with this one. The OEM quality and weather resistant material make it stand out from the rest. And to top it off, it’s built to standards specified by IAPMO – talk about peace of mind!

Shoutout to Ameri-Kart for making such a top-notch product! And let’s not forget about their location – Elkhart County, Indiana – aka the RV Capital of the World. They definitely know what they’re doing when it comes to creating a high-quality RV fresh water tank. Trust me, you won’t be disappointed with this purchase.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

The Importance of Measuring a 29 Gallon Tank

As a fish tank enthusiast, I have learned the importance of accurate measurements when it comes to maintaining a healthy and thriving aquarium. A 29 gallon tank is a popular size for beginner and experienced hobbyists alike, and measuring it is crucial for several reasons.

Firstly, knowing the exact dimensions of your tank allows you to properly plan and arrange your decorations and plants. Overcrowding in a small space can lead to stress and illness in fish, so having an accurate measurement of the tank can help prevent this issue.

Furthermore, measuring the water level in a 29 gallon tank is essential for maintaining proper water quality. The recommended water change percentage for this size tank is around 25%, but without knowing the exact volume of the tank, it can be difficult to know how much water needs to be changed.

In addition, measuring the volume of water in the tank is necessary for dosing medications or supplements. Different treatments require specific amounts based on the size of the tank, so having an accurate measurement is crucial for proper dosing.

Lastly, knowing the measurements of your 29 gallon tank can help with future upgrades or modifications. If you plan on adding new fish or upgrading your filtration system,

My Buying Guide on ‘Measurements Of A 29 Gallon Tank’

As an avid aquarium enthusiast, I have gone through my fair share of tanks in different sizes and shapes. When it was time for me to upgrade to a 29 gallon tank, I realized that there were certain measurements that I needed to consider in order to make the best purchase decision. In this buying guide, I will share my knowledge and experience on the important measurements of a 29 gallon tank.

Tank Dimensions

The first thing to consider when buying a 29 gallon tank is its dimensions. This refers to the length, width, and height of the tank. A standard 29 gallon tank typically measures 30 inches in length, 12 inches in width, and 18 inches in height. However, it is important to note that these dimensions may vary depending on the brand or type of tank.

Before making a purchase, it is essential to measure the space where you plan on keeping the tank. You want to ensure that there is enough room for the tank and all its equipment, as well as leaving some space for easy maintenance and cleaning.

Tank Shape

Another important consideration is the shape of the tank. A 29 gallon tank can come in various shapes such as rectangular, square, hexagonal or bow-front. Each shape has its own advantages and disadvantages.

Rectangular tanks are more common and provide a larger surface area for fish to swim. Square tanks are great for smaller spaces as they can be placed against a wall without taking up too much space. Hexagonal tanks offer a unique aesthetic appeal but may be challenging to clean due to their corners. Bow-front tanks have a curved front panel which enhances viewing angles but may also have limited space for decoration.

When deciding on the shape of your 29 gallon tank, consider factors such as your available space, desired aesthetic appeal, and ease of maintenance.

Tank Material

The material used for your tank can also impact its measurement and overall quality. The two most common materials used for aquariums are glass and acrylic.

Glass tanks are more affordable and provide better clarity for viewing fish compared to acrylic tanks which can sometimes have a slight tint. However, glass tanks are heavier and more prone to cracks or breaks if not handled carefully.

Acrylic tanks are lighter in weight but tend to be more expensive than glass tanks. They are also more durable and less likely to break compared to glass tanks.

Consider your budget and personal preferences when choosing between glass or acrylic material for your 29 gallon tank.

Tank Accessories

Lastly, when purchasing a 29 gallon tank, consider any additional accessories that come with it such as filters, lighting systems, heaters or stands. These accessories not only add up to the overall cost but also affect the measurements of the tank.

For example, if you plan on having an external filter system or heater inside the tank, you need to factor in their sizes when measuring available space for your new 29 gallon tank.

Additionally, consider investing in a sturdy stand specifically designed for your size and type of aquarium. This will not only provide support but also ensure safety for both your fish and yourself while maintaining or cleaning the tank.

In conclusion,, understanding these essential measurements of a 29 gallon tank will help you make an informed purchase decision based on your available space, desired aesthetics and budget constraints.
Remember always measure twice before purchasing once! Happy shopping!

Author Profile

Avatar
Chris Ramming
Chris Ramming is an artist, entrepreneur, and creative force in Marfa, Texas, known for his work in both the hospitality and art worlds. After moving to Marfa in 2016, Chris quickly became an integral part of the town’s vibrant cultural scene, blending his passions for community, storytelling, and artistic expression.

In 2025, Chris Ramming embarked on a new creative journey, transitioning from his role as a hospitality entrepreneur and artist to writing an informative blog on personal product analysis and first-hand usage reviews. Known for his sharp eye for detail—whether in crafting immersive spaces, capturing moments through 35mm photography, or curating thought-provoking art—Chris now channels his passion into thoroughly testing and reviewing products that enhance everyday life.