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Home » Tanks of All Shapes and Sizes: A Comprehensive Guide to Aquarium Types

Tanks of All Shapes and Sizes: A Comprehensive Guide to Aquarium Types

Aquarium Size Guide

There’s a moment in everyone’s life when they stand in front of an aquarium and think, “Man, I need one of these in my life.” But then, the million-dollar question pops up: which one? It’s like standing in front of a donut display at your favorite bakery, but instead of donuts, it’s glass boxes filled with water and exotic fish.

Fear not, my fellow aquarists! This comprehensive guide will walk you through the mysterious and fantastical world of aquariums, covering everything from standard sizes to custom, nano, pico, and all those fancy-shaped tanks. Grab a cup of coffee, and let’s dive right in!

Standard Aquarium Sizes

The Workhorse of the Aquarium World

A freshly delivered large standard rectangle aquarium awaiting setup


When it comes to aquariums, standard sizes are like the white T-shirt of the fish tank world. They’re reliable, versatile, and you can never have too many. Here’s a breakdown of the most common sizes:

  • 10 gallons: The perfect starter tank, small enough to fit on a desk or shelf, and easy to maintain.
  • 20 gallons: A popular choice for those ready to up their aquarium game, offering more space for fish and plants.
  • 29 gallons: For the aquarist who’s ready to dip their toes into the world of larger tanks but doesn’t want to go full-on whale shark.
  • 55 gallons: A classic choice, offering plenty of space for your aquatic friends to frolic, swim, and generally live their best lives.
  • 75 gallons: For when you’re feeling fancy and want to make a statement, the 75-gallon tank offers a lot of swimming room and decorating possibilities.
  • 125 gallons+: The sky’s the limit! These behemoth tanks are perfect for creating a breathtaking underwater world, but they also require some serious commitment and maintenance.

Custom Aquarium Sizes

An extra tall aquarium aquascaped with tall plants


The Couture of the Aquarium World

For those who prefer a more tailored approach to their aquariums, custom sizes are the answer. Think of them as the haute couture of the fish tank world, crafted to fit your unique vision and space requirements. Here are some popular customizations:

  • Extra-tall tanks: Perfect for those with limited horizontal space but plenty of vertical real estate.
  • Long and shallow tanks: Ideal for showcasing bottom-dwelling fish and creating stunning aquascapes.
  • L-shaped tanks: An inventive solution for utilizing awkward corners and maximizing space.
  • Wall-mounted tanks: The ultimate in space-saving aquariums, allowing you to enjoy your fishy friends while barely taking up any floor space.

Nano and Pico Aquariums

A 3 gallon saltwater pico aquarium


The Tiny Titans of the Aquarium World

Don’t be fooled by their size—nano and pico aquariums pack a punch! These pint-sized tanks are perfect for small spaces or as a low-maintenance introduction to the world of fishkeeping. Here’s the rundown on these little wonders:

  • Nano aquariums: Ranging from 2.5 to 10 gallons, nano tanks are perfect for housing small fish, shrimp, and plants.
  • Pico aquariums: Even smaller than nano tanks, pico aquariums typically hold less than 2.5 gallons and are ideal for tiny critters like snails, shrimp, and microorganisms.

Bowfront and Corner Aquariums

A beautifully aquascaped corner aquarium with driftwood


The Curvy Couture of the Aquarium World

Why settle for a plain, old rectangular tank when you can have one with curves? Bowfront and corner aquariums are the showstoppers of the aquatic world, adding a touch of elegance and sophistication to any space. Here’s the lowdown on these curvaceous creations:

  • Bowfront aquariums: These tanks feature a curved front glass panel, offering a stunning panoramic view of your underwater world. They come in a range of sizes, from 16 gallons up to 155 gallons or more.
  • Corner aquariums: Designed to fit snugly into a corner, these aquariums maximize space while providing a unique and eye-catching display. They’re available in various sizes, from 36 gallons to 92 gallons or larger.

Rimless and All-in-One Aquariums

A well litle rimless aquarium aquascaped with high tech plants and seiryu stones


The Minimalists of the Aquarium World

For the aquarist who values clean lines and a sleek, modern look, rimless and all-in-one aquariums are the way to go. These tanks are the epitome of form and function, offering an unobstructed view of your aquatic masterpiece. Let’s break down these minimalist marvels:

  • Rimless aquariums: As the name suggests, these tanks ditch the traditional frame and trim for a seamless, open-top design. They come in various sizes, from small desktop models to larger, room-dominating tanks.
  • All-in-one aquariums: These streamlined systems include everything you need to get started: a tank, filtration, lighting, and often a stand. They’re perfect for beginners or those looking for a hassle-free setup.

Biotope and Species-Specific Aquariums

A south american themed biotope aquarium


The Themed Tanks of the Aquarium World

If you’re the type of person who enjoys a good theme party, then biotope and species-specific aquariums are right up your alley. These tanks are designed to replicate specific environments or cater to the needs of certain species, making them both educational and visually stunning. Here’s what you need to know:

  • Biotope aquariums: These tanks aim to recreate a specific habitat, such as a Southeast Asian river, an Amazonian rainforest, or a Caribbean coral reef. They often require careful planning, research, and attention to detail, but the results can be breathtaking.
  • Species-specific aquariums: As the name suggests, these tanks are tailored to the needs of a particular species, such as a betta fish, goldfish, or axolotl. They typically feature species-appropriate decorations, substrates, and plants, ensuring your aquatic buddies feel right at home.

In Conclusion

The world of aquariums is vast and varied, offering something for every taste, space, and budget. Whether you’re a first-time fishkeeper or a seasoned aquarist, there’s a tank out there just waiting for you to fill it with water, plants, and fishy friends. So, take the plunge and dive into the wonderful world of aquariums—your aquatic adventure awaits!