Aquarium Fish

Aquarium fish can differ from their counterparts in oceans and streams and owners should be aware. Learn about some common and not so common aquarium fish, such as the Egyptian Mouthbrooder, Penguin Fish, and Tiger Barb.

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Colorful, flashy betta fish are common as pets. But many owners are unaware of how to properly care for them.

By Melanie Radzicki McManus

Goldfish may seem like an easy starter pet, but they do require some basic care so they don't end up in the toilet a few weeks later! We talk with an expert about the three steps every goldfish owner should take.

By Alia Hoyt

Elephants never forget. Crows remember human faces and tell other crows who can be trusted. But goldfish? Well, let's just say they're not known for having particularly strong memories. But if recent studies are to be believed, maybe they should be.

By Kate Kershner

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You love to watch saltwater fish and want to learn how to set up a saltwater aquarium. In this article you will learn how to set up a saltwater aquarium.

By HowStuffWorks.com Contributors

If you'd like to keep an amphibian as a pet, you'll have to learn how to set up a tank for amphibians. Learn how to set up a tank for amphibians in this article.

By HowStuffWorks.com Contributors

Who doesn't like to look at a school of brightly colored tropical fish swimming serenely in an aquarium? But who wants to clean the glass and remove the fish waste and debris? We've got five fast tips to make cleaning the fish tank easier.

By Sarah Grace McCandless

Unsure of which fish to buy for your aquarium? See some candidates of typical aquarium fish to help narrow down your options in this gallery.

By Marie Bobel

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The neon tetra needs no light show to sport its small multicolored body. Read more about the very popular and colorful Neon Tetra in this article.

By the Editors of Publications International, Ltd.

A somewhat larger tetra, the diamond tetra reaches 2.5 inches and exhibits intense coloration when kept in a darkly aquascaped tank. Learn how to care for this exotic fish.

By the Editors of Publications International, Ltd.

Choosing the right fish for a freshwater aquarium depends on a number of factors, including the tank's size, the fish's diet, and more. Our fish profiles will allow you to select the perfect blend of fish, no matter how large or small your aquarium.

By the Editors of Publications International, Ltd.

Simply put, fish don't like a dirty home any more than we humans do! Follow the tips in this article to keep your aquarium clean and cozy for your fish.

By the Editors of Publications International, Ltd.

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The black phantom tetra grows to two inches and is a hardy species that does well in both small and large groups. Learn how to take care of the black phantom tetra, no matter how many you choose to have.

By the Editors of Publications International, Ltd.

If you've ever had a pet fish that died quickly, you may be surprised to learn that the normal lifespan of most aquarium fish is measured in years! Find out how to keep your fish alive and well in this article.

By the Editors of Publications International, Ltd.

Often, hobbyists find themselves leaving a pet store with a fish that they just couldn't pass up without having any idea what it eats, how large it gets, or if it has any unusual care requirements. While it is always fun to acquire a new fish, doing it haphazardly can be disastrous and costly.

By the Editors of Publications International, Ltd.

Before you bring an aquarium home to house your new fishy friends, you'll need to know how they work, how to shop for one, and how to maintain your aquarium. Read this article to learn the basic steps to creating your aquarium.

By the Editors of Publications International, Ltd.

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From design, to water filtration to the proper plants, there's a lot to know in order to set up a vibrant aquarium that will keep your fish healthy and happy. This article provides tips and advice on the many issues you'll face and the equipment you'll need to address them.

By the Editors of Publications International, Ltd.

Knowing how to set up an aquarium is vital to the survival of your freshwater fish. Learn the important initial steps of how to set up an aquarium.

By the Editors of Publications International, Ltd.

Did you know that the type of water in your aquarium can affect how the cardinal tetra looks? Learn how to make this dazzling fish feel and look its best.

By the Editors of Publications International, Ltd.

These fish get their name from their iridescent coloring that shows best in low light. Learn how to care for the glowlight tetra.

By the Editors of Publications International, Ltd.

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The head and tail light tetra, also referred to as the beaconfish, races around the aquarium autobahn. Find a profile of the head and tail light tetra.

By the Editors of Publications International, Ltd.

The x-ray tetra is an excellent freshwater fish for first-time fish owners. Read about and see a picture of the fast-swimming x-ray tetra.

By the Editors of Publications International, Ltd.

The bleeding heart tetra is a deep-bodied tetra that grows to two inches and must be kept in groups. This fish is higher-maintenance than many others, but it's beauty may be worth the extra care.

By the Editors of Publications International, Ltd.

The bloodfin tetra is an excellent community species that grows to approximately two inches in length. Like most tetras, they are most comfortable in a group of six or more.

By the Editors of Publications International, Ltd.

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The red-eye tetra likes to take a nip now and then at the longer fins of other fish. Read about the otherwise undemanding red-eye tetra fish.

By the Editors of Publications International, Ltd.

Unlike many of the peaceful fish suited to an aquarium, the African Congo tetra likes to jump! Learn how to protect him and keep him happy in his aquarium.

By the Editors of Publications International, Ltd.