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.


Learn More

5 Things Everyone Gets Wrong About Betta Fish

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

How Did the Goldfish Become Everyone's First Pet?

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.

New Butterflyfish Species Discovered Just Swimming in a Tank

It's rare that we discover new species in captivity. But that's exactly what happened to this butterflyfish.

How much can a goldfish remember?

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.

A Guide to Aquariums

Is there an aquarium in your backyard? Explore the alphabetical listings to find aquariums that are great for people and animals.

Amazon Rising: Seasons of the River

Need a good visit to the zoo? Check out this list of amazing places to visit to see the coolest animals and aquarium exhibits.

How to Set Up a Saltwater Aquarium

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.

How to Set up a Tank for Amphibians

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.

No More Muddy Waters: 5 Aquarium Cleaning Tips

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.

Aquarium Fish Pictures

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.

Neon Tetra

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.

Diamond Tetra

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.

Freshwater Aquarium Fish

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.

How to Maintain an Aquarium

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.

Black Neon Tetra

The black neon tetra is a peaceful and sociable fish that loves to swim in a school. Learn how to care for this type of aquarium fish.

Black Phantom Tetra

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.

How to Care for Aquarium Fish

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.

How to Choose Aquarium Fish

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.

Aquarium Basics

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.

How to Choose Aquarium Equipment

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.

How to Set Up an Aquarium

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.

Cardinal Tetra

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.

Glowlight Tetra

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

Head and Tail Light Tetra

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.

Black Tetra

The black tetra is a two-inch long fish that's easy to care for. Find out how, plus learn how these fish look their best in your aquarium.