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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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.


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.

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.

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.