Feature Story

Aquarium Dimensions Gallons

A 75 gallon aquarium is 48 x 18 x 21 inches and weighs about 825 lb once set up. Size, floor load, gravel and heater guide.

Choosing the right fish tank starts with knowing its dimensions, capacity, and filled weight. A standard 10-gallon fish tank measures 20 × 10 × 12 inches, while a 55-gallon tank measures 48 × 13 × 21 inches. For beginners, 10- or 20-gallon tanks offer manageable sizes. Before buying, check your available space, stand strength, and the tank’s exact measurements, since dimensions vary by manufacturer. Compare standard sizes, weights, and gallon capacities to find the right aquarium. #FishTankDimensions #AquariumSize #FishTankGuide #AquariumSetup

75 Gallon Tank Dimensions & How Much It Weighs
75 Gallon Tank Dimensions & How Much It Weighs

75 Gallon Aquarium Dimension

The 150 gallon is a tall 6 foot tank, 72 x 18 x 28 inches. See how much it weighs filled, gravel needs and heater sizes.

How big is a 55 gallon aquarium? About 48 × 13 × 21 inches outside (length × width × height). Exact maker sizes: Aqueon 48 1/4 × 12 3/4 × 21 in; Marineland 48 15/32 × 12 27/32 × 20 13/16 in. See the real water volume, full weight and the stand it needs with the free calculator at TankRatio. #aquarium #fishtank #aquariumsetup #fishkeeping

Fish Tank Dimensions Sizes, Weight & Gallon Capacity
Fish Tank Dimensions Sizes, Weight & Gallon Capacity
150 Gallon Aquarium Dimensions: 72 x 18 x 28
150 Gallon Aquarium Dimensions: 72 x 18 x 28

10 Gallon Aquarium Dimension

Mid-Sized Rectangle Fish Aquarium Sizes (Diagram)

Aquarium Sizes - CORAL Magazine
Aquarium Sizes - CORAL Magazine
55 Gallon Tank Dimensions: 48 × 13 × 21 in (122 × 33 × 53 cm)
55 Gallon Tank Dimensions: 48 × 13 × 21 in (122 × 33 × 53 cm)

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75 Gallon Aquarium Dimension

Planning a large aquarium? Learn the exact 125 gallon fish tank dimensions, weight, setup requirements, and best fish for a spacious freshwater aquarium. Find tips for choosing the right stand, filtration, aquascaping ideas, and maintenance schedule before you buy. Click to read the complete 125 gallon aquarium guide! #125gallonfishtank #aquarium #aquariumsetup #fishtank #freshwateraquarium

Learn how to measure an aquarium for fit, water capacity, and substrate. See the difference between inside and outside dimensions, how to calculate approximate gallons, how to measure for sand or gravel, and what to consider for sloped or unusual tank shapes.

Fish Tank Sizes (Charts & Tables)
Fish Tank Sizes (Charts & Tables)
This tank-size reference sheet helped when planning my fish room
This tank-size reference sheet helped when planning my fish room
How Big Is A 125 Gallon Fish Tank? Size Guide + Dimensions
How Big Is A 125 Gallon Fish Tank? Size Guide + Dimensions
How to Measure an Aquarium Correctly
How to Measure an Aquarium Correctly
20-Gallon Long vs High: Compare the Footprint
20-Gallon Long vs High: Compare the Footprint
A Cheat Sheet to Fish Tank Gallon Sizes and Dimensions
A Cheat Sheet to Fish Tank Gallon Sizes and Dimensions
40 Gallon Fish Tank Dimensions: Perfect Size Guide!
40 Gallon Fish Tank Dimensions: Perfect Size Guide!
Aquarium Size Guide for Beginners – Best First Tank Size
Aquarium Size Guide for Beginners – Best First Tank Size

Both tanks hold 20 gallons, but their dimensions are different. Compare 20-gallon long and high aquarium sizes, then explore Guidarium’s stocking guides before choosing your setup.

You can use this chart as a quick reference for each aquarium size and gallon capacity. Inside you'll find a comparison between the dimensions and sizes of all standard and most custom fish tanks used in the hobby!

Wondering how big a 40-gallon aquarium really is? Get the exact dimensions, usable capacity, and ideal setups for your dream fish tank! Learn about breeder tanks, long tanks, and more. #40GallonTank #AquariumSetup #FishTankDimensions #Aquascaping

What's the best starter tank? This Aquarium Size Guide recommends 20-gallon long for beginners – stable water parameters, more fish options, easier maintenance than small tanks. Avoid 5-gallon or bowls (hard to cycle, temperature swings). Tap to learn why bigger is better and comment "20 GALLON" if you agree.